Claims:1. A method for incinerating liquid effluent (201) in an incineration plant (100) for power generation, comprising:
steaming the liquid effluent (201) in one or more evaporators (1), wherein moisture content from the liquid effluent (201) is evaporated;
heating the evaporated liquid effluent (201) in one or more evaporators (1), wherein the evaporated liquid effluent (201) is concentrated to form semi-solid effluent (202);
combustion of fluid fuel (205) in an incineration chamber (3) to pre-heat the incineration chamber (3);
atomizing the semi-solid effluent (202) by one or more atomizers (3) with pressurized fluid;
incinerating the atomized semi-solid effluent (203) within the pre-heated incinerator chamber (2), thereby releasing residual gases (204);
routing the residual gases (204) to a heat recovery unit (10) for generation of steam (207);
channeling the steam (207) to an at least one prime mover (4) for power generation.

2. The method as claimed in claim 1, wherein evaporation of moisture content from the liquid effluent (201) in the one or more evaporators (1) is in the range of about 30% to about 70%.

3. The method as claimed in claim 1, comprises pumping of the fluid fuel from an external fuel supply unit (6), wherein the fluid fuel is at least one of a liquid fuel and a gaseous fuel.

4. The method as claimed in claim 1, wherein pre-heating of the incineration chamber (3) is periodically performed to maintain a temperature of about 550°C to about 650°C.

5. The method as claimed in claim 1, wherein treatment of the residual gases (204) is performed at a filtration unit (11), before exhausting the residual gases (204) through an exhaust unit (12).

6. An incineration plant (100) for incinerating liquid effluent (201) for power generation, comprising:
one or more evaporators (1) for steaming and heating the liquid effluent (201), wherein steaming and heating of the liquid effluent (201) transforms the liquid effluent (201) into a semi-solid effluent (202);
an incinerator chamber (2), wherein the incinerator chamber (2) comprising:
one or more atomizers (3) configured to receive the semi-solid effluent (202) from the one or more evaporators (1) and fluid fuel (205) from a fuel supply unit (6), wherein the semi-solid effluent (202) and the fluid fuel (205) are atomized by pressurized fluid within the incinerator chamber (2); and
one or more burners (5) configured within the incineration chamber (3), wherein the one or more burners (5) incinerates the atomized fluid fuel (205) to pre-heat the incinerator chamber (3) such that,
the atomized semi-solid effluent (203) is incinerated to release residual gases (204) for heating of steam (207) in a heat recovery unit (10); and
at least one prime mover (4) propelled by the steam (207) for power generation.

7. The incineration plant (100) as claimed in claim 6, wherein the one or more evaporators (1) evaporates about 30% to about 70% of moisture content from the liquid effluent (201).

8. The incineration plant (100) as claimed in claim 6, wherein the plant (100) is associated with external fuel supply unit (6), which supplies fluid fuel (205) into the one or more atomizer (3).

9. The incineration plant (100) as claimed in claim 6, wherein the fluid fuel (205) pumped from the fuel supply unit (6) is at least one of a liquid fuel and a gaseous fuel.

10. The incineration plant (100) as claimed in claim 6, wherein the one or more atomizers (3) are configured within the incinerator chamber (2).

11. The incineration plant (100) as claimed in claim 6, wherein the incineration chamber (3) is periodically pre-heated and maintained a temperature of about 550°C to about 650°C.

12. The incineration plant (100) as claimed in claim 6, wherein the residual gases (204) are transferred to a heat recovery unit (10) to energize the steam (207). , Description:
TECHNICAL FIELD
Present disclosure relates to field of industrial effluent treatment. Particularly, but not exclusively, the disclosure relates to treatment of the effluent in an incineration plant of a distillery plant. Further, embodiments of the present disclosure relate to a method and a system for incineration of liquid effluent in the incineration plant.

BACKGROUND OF THE DISCLOSURE

Conventionally, in a distillery plant a predetermined quantity of effluent is produced for every liter of spirit manufactured. The effluents are unsolicited by-products of the spirit manufacturing process, and needs to be discarded. In general, the effluents released, post-manufacturing of the spirit, is in liquid phase. Further, the effluents contain toxic chemicals, due to which the effluents cannot be directly channelized into a drain and into the environment. Chemical treatment of the effluents might turn out to be one of the factors for water pollution, as treated effluents drained from the distillery plant is connected to a sewage harvesting and treatment plan, and later into the environment. This might lead to a major cause of pollution as the area required to store, treat and dispose the liquid effluent from the distillery plant is comparatively larger.
Conventionally, treatment plants incorporate mechanical methods of treating the distillery effluents, in order to overcome some of the limitations of the chemical treatment. The conventional treatment plants utilize solid fuel, which include, but not limited to, charcoal for combustion process of the effluent. However, due to improper amalgamation of the effluent with the solid fuels, the effluent undergoes incomplete combustion, thereby resulting in formation of residual solid waste, such as ash. Further, the solid wastes get accumulated on the walls of the furnace, and over time and prolonged usage decreases the efficiency of the furnace. Maintenance of the furnace is time consuming and laborious task. Additionally, the residual solid wastes are harmful substrates which require solid waste handling apparatuses, to convert the solid waste into an eco-friendly substrate, prior to disposing it from the industry to the environment. The treatment of the residual solid wastes involves time-consuming procedures, which are also expensive. In many occasions, during incomplete combustion of the effluent, hazardous pollutants are emitted into the atmosphere, thereby resulting in air pollution.
In general, the treatment plants are provisioned with plurality of furnaces or incinerators, which are integrated with multiple evaporator compartments for combustion of the effluent. The area required to set-up such apparatuses are comparatively large and expensive.
Hence, there is a need to develop a system and a method for treatment of effluent in a distillery plant, by overcoming one or more limitations stated above.
The information disclosed in this background section of the disclosure is only for enhancement of understanding of the general background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
SUMMARY OF THE DISCLOSURE
One or more shortcomings of the prior art are overcome by an apparatus, and a method as claimed in the present disclosure. Additional features and advantages are realized through the techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the claimed disclosure.
In some non-limiting embodiment of the present disclosure, a method for incinerating liquid effluent in a distillery plant for power generation is disclosed. The method comprises steps of steaming the liquid effluent in one or more evaporators, wherein moisture content from the liquid effluent is evaporated. Heating the evaporated liquid effluent in one or more evaporators, wherein the evaporated liquid effluent is concentrated to form semi-solid effluent. Combustion of fluid fuel in an incineration chamber is performed to pre-heat the incineration chamber. Atomizing of the semi-solid effluent by one or more atomizers with pressurized fluid is performed. Incinerating the atomized semi-solid effluent within the pre-heated incinerator chamber to release residual gases. Routing the residual gases to a heat recovery unit for generation of steam. Channeling the steam to an at least one prime mover for power generation.

In some embodiment of the present disclosure, evaporation of moisture content from the liquid effluent in the one or more evaporators is in the range of about 30% to about 70%.

In some embodiment of the present disclosure, comprises pumping of the fluid fuel from an external fuel supply unit, wherein the fluid fuel is at least one of a liquid fuel and a gaseous fuel.

In some embodiment of the present disclosure, pre-heating of the incineration chamber is periodically performed to maintain a temperature of about 550°C to about 650°C.

In yet another non-limiting embodiment of the present disclosure, a distillery plant for incinerating liquid effluent for power generation is disclosed. The plant comprises of one or more evaporators for steaming and heating the liquid effluent, wherein steaming and heating of the liquid effluent transforms the liquid effluent into a semi-solid effluent. An incinerator chamber, wherein the incinerator chamber comprises one or more atomizers are configured to receive the semi-solid effluent from the one or more evaporators. Further, the one or more atomizers receive fluid fuel from a fuel supply unit. The semi-solid effluent and the fluid fuel are atomized by pressurized fluid within the incinerator chamber, by the one or more atomizers. One or more burners are configured within the incineration chamber, wherein the one or more burners incinerates the atomized fluid fuel to pre-heat the incinerator chamber. The atomized semi-solid effluent is then incinerated to release residual gases for generating steam. At least one prime mover is propelled by the steam for power generation.

In some embodiment of the present disclosure, the plant is associated with external fuel supply unit, which supplies fluid fuel into the one or more atomizer to mix with the semi-solid effluent.

In some embodiment of the present disclosure, the fluid fuel pumped from the fuel supply unit is at least one of a liquid fuel and a gaseous fuel.

In some embodiment of the present disclosure, the one or more atomizers are configured within the incinerator chamber.

In some embodiment of the present disclosure, the residual gases are transferred to a heat recovery unit to energize the steam.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS

The novel features and characteristic of the disclosure are set forth in the appended claims. The disclosure itself, however, as well as a preferred mode of use, further objectives and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying figures. One or more embodiments are now described, by way of example only, with reference to the accompanying figures wherein like reference numerals represent like elements and in which:
Figure 1 illustrates a block diagram of layout of an incineration plant in accordance with some embodiment of the present disclosure.
Figure 2 illustrates a flow chart illustrating a method of incinerating liquid effluent in the incineration plant in accordance with some embodiment of the present disclosure.
The figures depict embodiments of the disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the apparatus, and the method illustrated herein may be employed without departing from the principles of the disclosure described herein.

DETAILED DESCRIPTION OF THE DISCLOSURE

While the embodiments in the disclosure are subject to various modifications and alternative forms, specific embodiment thereof has been shown by way of example in the figures and will be described below. It should be understood, however that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternative falling within the scope of the disclosure.

The terms “comprises”, “comprising”, or any other variations thereof used in the disclosure, are intended to cover a non-exclusive inclusion, such that a device, system, method that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such system, or assembly, or device. In other words, one or more elements in a system proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the method or the system.

In order to overcome the limitations stated in the background, the present disclosure provides the following paragraphs which describe the present disclosure with reference to Figures 1 and 2. In the figures, the same element or elements which have same functions are indicated by the same reference signs. One skilled in the art would appreciate that the method, and the system as disclosed in the present disclosure can be used in treatment of liquid effluent in any other treatment plant.

A method for incinerating liquid effluent in an incineration plant for power generation is disclosed as some embodiment of the present disclosure. The method includes steps of steaming the liquid effluent in one or more evaporators, wherein moisture content from the liquid effluent is evaporated. The evaporated liquid effluent is heated in one or more evaporators and the evaporated liquid effluent is concentrated to form semi-solid effluent. The semi-solid effluent is atomized by one or more atomizers with pressurized air. The fluid fuel is combusted in an incineration chamber, to pre-heat the incineration chamber. The semi-solid effluent is atomized by one or more atomizers with pressurized fluid. The atomized semi-solid effluent is then incinerated within the pre-heated incinerator chamber to release residual gases. The residual gases are routed to a heat recovery unit for generation of steam. The steam is then channelized to an at least one prime mover for power generation.

In the following detailed description of the embodiments of the disclosure, reference is made to the accompanying drawings that form a part hereof, and in which drawings are shown by way of illustration of specific embodiments in which the disclosure may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the disclosure, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the scope of the present disclosure. The following description is, therefore, not to be taken in a limiting sense.
Figure 1 is an exemplary embodiment of the present disclosure, which illustrates a perspective view of layout of an incineration plant (100). The incineration plant (100), as shown in Figure 1, is equipped with one or more evaporators (1), that are supplied with liquid effluent (201). The liquid effluent (201), is contained in the one or more evaporators (1) for treatment and processing. The liquid effluent (201) is subjected to evaporation, wherein steam jets are passed over the liquid effluent (201) stored in the one or more evaporators (1). The steam jets are passed such that, top surface of the liquid effluent (201) is exposed to the steam jets, thereby enabling the steam jets to separate and evaporate moisture content from the liquid effluent (201). In an embodiment, the movement of the steam jets over the top surface of the liquid effluent (201) may not completely remove the moisture content from the liquid effluent (201), and further processing and treatment of the steamed liquid effluent (201) is carried out.
In an embodiment, the steamed liquid effluent (201) is heated to remove residual moisture content, thereby concentrating the liquid effluent (201). On subjecting the steamed liquid effluent (201) to heating process and concentration, for removal of the residual moisture content, the steamed liquid effluent (201) is transformed into a semi-solid effluent (202). In an embodiment, the evaporation and concentration of the liquid effluent (201), in the one or more evaporators (1), removes about 30% to about 70% of the moisture content.
The semi solid-effluent (202) is routed from the one or more evaporators (1) to an incinerator chamber (2), for incineration. The incinerator chamber (2) is provisioned with one or more atomizers (3), which receives the semi-solid effluent (202). In an embodiment, the one or more atomizers (3) are provisioned with plurality of nozzles and a pressure-jet conduit [not shown in figures]. The plurality of nozzles are configured to receive the semi-solid effluent (202), while the pressure-jet conduit is configured to a compressor [not shown in figures] for receiving pressurized fluid. The plurality of nozzles congregates the semi-solid effluent (202) such that, the pressurized fluid from the pressure-jet conduit atomizes the semi-solid effluent (202), within the incinerator chamber (2).
In an embodiment, a fuel supply unit (6) is connected to one or more atomizers (3), provisioned in the incinerator chamber (2). Fluid fuel (205), including but not limited to liquid fuels, gaseous fuels and the like, are contained in the fuel supply unit (6). The fluid fuel (205) is pumped to the one or more atomizers (3) such that, the fluid fuel (205) is atomized within the incinerator chamber (2). The atomized fluid fuel (205) is subjected to combustion by one or more burners (5), to pre-heat the incineration chamber (3). The one or more burners (5) may be periodically actuated to maintain the incineration chamber (2) at a temperature range about 550°C to about 650°C. The atomized semi-solid effluent (203) is then introduced into the incinerator chamber (2) for combustion. Due to presence of latent heat in the pre-heated incineration chamber (2), the atomized semi-solid effluent (203) is incinerated.

The incinerated atomized semi-solid effluent (203) releases residual gases (204). The residual gases (204) released from the incineration process possesses latent energy, and rises due to change in density.

In some embodiment, the residual gases (204) may be routed to a heat recovery unit (10). The heat recovery unit (10) may contain a predetermined quantity of either water or steam. It is to be noted that, the predetermined quantity of water or steam contained in the heat recovery system (10) is pre-calculated, based on certain factors including but not limited to, the capacity of power to be generated, volume and temperature of the residual gases (204), and the like. Further, the energy contained in the residual gases (204) is transferred to the predetermined quantity of water or steam, to energize into a high-pressure steam (207), having mechanical capacity.

The high-pressure steam (207) is then channelized to an at least one prime mover (4). The at least one prime mover (4) is propelled by the high-pressure steam (207) for power generation at a power generation unit (13). It is to be noted that the capacity of power generated in the incineration plant (100) is dependent on certain factors such as, but not limited to, quantity of liquid effluent (201) to be incinerated, calorific value of the liquid effluent (201), quantity of fluid fuel (205) required, calorific value of the fluid fuel (205), volume and temperature of the residual gases (204), and the like. In some embodiment, the at least one prime mover (4) is connected to a gearbox, and in-turn to a power generating element [not shown in figures] included in the power generation unit (13), to convert the mechanical energy of the at least one prime mover (4) into an electrical energy, thereby producing power.
In some embodiments, the liquid effluent (201) may be routed to the one or more evaporators (1) from a drain conduit [not shown in Figures] for processing and treatment.
In some embodiments, the concentration may be performed by heating process or by surface-vaporization of moisture content from the liquid effluent (201) in the one or more evaporators (1). In some embodiment, the liquid effluent (201) may be subjected to heating processes, for concentration of the liquid effluent (201). The heating process refers to subjecting the liquid effluent (201) to the heating process, at a temperature ranging from about 150°C to about 250°C for a predefined period of time ranging from 30 mins to about 120 mins based on the volume of liquid effluent to be evaporated.
In some embodiments, the one or more evaporators (1), the incinerator chamber (2), the fuel supply unit (6), and the one or more burners (5) are connected by one or more pipes (7) to supply effluent from one component to another, within the incineration plant (100).
In some embodiment, incineration of the atomized combustible mixture (203) may produce trivial quantity of solid aggregate, along with the residual gases (204). The solid aggregate may be collected in an ash-pit (8) provisioned in vicinity of the incinerator chamber (2). On opening pit gates (9) provided to the ash-pit (8), the solid aggregate may be dispensed from the incineration plant (100).
In some embodiments, the heat recovery unit (10) may be connected to a filtration unit (11), for collecting and purifying the residual gases (204). The filtration unit (11) may include several stages of filtering processes, to reduce toxicity of the residual gases (204), prior exhausting the residual gases (204) to the atmosphere through an exhaust unit (12).

In some embodiments, the steam (207) after propelling the at least one prime mover (4), may be converted to a low-pressure steam (208), which may possess capacity for performing mechanical work. The low-pressure steam (208) may be routed to units including but not limited to a distillery plant (14), the one or more evaporators (1), exhaust unit (12), and the like, for further processing.

Referring to Figure 2, which illustrates a flow chart of a method for incinerating liquid effluent (201) in the incineration plant (100) for power generation, in one exemplary embodiment of the present disclosure.
In step 301, the liquid effluent (201) is supplied to the one or more evaporators (1), for processing and treatment. The liquid effluent (201) is conveyed to one or more evaporators (1), and is contained in the one or more evaporators (1) for a predetermined amount of time.
In step 302, the liquid effluent (201) contained in one or more evaporators (1) is subjected to an evaporation process, where steam jets are passed over the liquid effluent (201), which removes moisture content from the liquid effluent (201). In some embodiment, the steam along with the removed moisture may be vented from the one or more evaporators (1), and the liquid effluent (201) with residual moisture, is passed on to another evaporator of the one or more evaporators (1).
In step 303, the liquid effluent (201) is subjected to a heating process, to remove the residual moisture from the steamed liquid effluent (201). On heating the steamed liquid effluent (201), residual moisture content from the steamed liquid effluent (201) is removed, thereby transforming the steamed liquid effluent (201) into the semi-solid effluent (202). The semi-solid effluent (202) is then conveyed to the incinerator chamber (2), through one or more pipes (7).
In steps 304 and 305, the semi-solid effluent (202) is routed from the one or more evaporators (1) to the one or more atomizers (3), provisioned within the incinerator chamber (2). The one or more atomizers (3) are provisioned with plurality of nozzles, to receive and conjugate the semi-solid effluent (202). At the same time, pressurized air from the compressor is supplied to the one or more atomizers (3), for atomizing the semi-solid effluent (202). The atomized semi-solid effluent (202) is spread across the incinerator chamber (2).
In step 306, fluid fuel (205) is pumped from the fuel supply unit (6), and is connected to the one or more atomizers (3), within the incineration chamber (2). The pumped fluid fuel (205) is diffused in the incinerator chamber (2) such that, the diffused fluid fuel (205) is subjected to combustion due to periodic actuation of the one or more burners (5). The combustion of the fluid fuel (205) pre-heats the incineration chamber (2), for assisting in incineration of the atomized semi-solid effluent (203).
In step 307, the atomized semi-solid effluent (203) incinerates due to latent heat contained in the incineration chamber (2). The one or more burners (5) may be actuated for incinerating the atomized semi-solid effluent (203), along with the latent heat in the incineration chamber (2). On incineration, the atomized semi-solid effluent (203) releases residual gases (204). The residual gases (204) are exhausted through air-vents (not shown in figures) provisioned in the incinerator chamber (2).
In steps 308 and 309, the residual gases (204) exhausted from the incinerator chamber (2) may be routed towards a heat recovery unit (10). In the heat recovery unit (10), extraction and transferring of heat from the residual gases (204) to a low-pressure steam or water is performed, to possess a high-pressure steam (207). The high-pressure steam (207) is channelized to the at least one prime mover (4), for generating electricity.
In some embodiment, the one or more evaporators (1), the incinerator chamber (2), the fuel supply unit (6), and the one or more burners (5) are inter-connected by the one or more pipes (7) to supply effluent from one component to another, within the incineration plant (100).
ADVANTAGES
In an embodiment, complete incineration of effluent is achieved.
In an embodiment, downtime of the incineration plant is reduced due to non-generation of solid aggregate.
In an embodiment, minimum fuel is required for incineration.
In an embodiment, trivial quantity of solid aggregate such as potash ash is produced due to incineration of the effluent.
In an embodiment, no additional solid waste handling and processing apparatuses are required.
In an embodiment, the incineration plant is provisioned with a separate incinerator chamber and one or more evaporators, thereby the set-up area required to construct the plant is reduced.
EQUIVALENTS
With respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations may be expressly set forth herein for sake of clarity.
It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits any particular claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and/or “an” should typically be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of “two recitations,” without other modifiers, typically means at least two recitations, or two or more recitations). Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances where a convention analogous to “at least one of A, B, or C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B.”
In addition, where features or aspects of the disclosure are described in terms of Markush groups, those skilled in the art will recognize that the disclosure is also thereby described in terms of any individual member or subgroup of members of the Markush group.
While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.

REFERRAL NUMBERS:

Particulars Numerical
One or more evaporators 1
Incinerator chamber 2
One or more Atomizer 3
At least one prime mover 4
At least one burner 5
Fuel supply unit 6
One or more pipes 7
Ash pit 8
Pit gates 9
Heat recovery unit 10
Filtering unit 11
Exhaust unit 12
Power generation unit 13
Distillery plant 14
Incineration plant 100
Liquid effluent 201
Semi-solid effluent 202
Atomized Semi-solid effluent 203
Residual gases 204
Fluid fuel 205
Exhaust gases 206
Steam 207
Residual steam 208