Wastewater is water that has been used and must be treated before it is released into another body of water, so that it does not cause further pollution of water sources. Wastewater comes from a variety of sources. Everything that you flush down vour toilet or rinse down the drain is wastewater. Rainwater and runoff, along with various pollutants, go down street gutters and eventually end up ar a wastewater treatment facility. Wastewater can also come from agricultural and industrial sources. Some wastewaters are more difficult to treat than others; for example, industrial wastewater can be difficult to treat, whereas domestic wastewater is relatively easy to treat (though it is increasingly difficult to treat domestic waste, due to increased amounts of pharmaceuticals- and personal care products that are found in domestic wastewater. For more information about emerging contaminants.

4. DESCRIPTION (Description shall start from next stage)
The Need for Wastewater Treatment Wastewater treatment is needed so that we can use our rivers and streams for fishing, swimming and drinking water. For the first half of the 20th century, pollution in the Nation's urban waterways resulted in frequent occurrences of low dissolved oxygen, fish kills, algal blooms and bacterial contamination. Early efforts in water pollution control prevented human waste from reaching water supplies or reduced floating debris that obstructed shipping. Pollution problems and their control were primarily local, not national, concerns. Since then, population and industrial growth have increased demands on our natural resources, altering the situation dramatically. Progress in abating pollution has barely kept ahead of population growth, changes in industrial processes, technological developments, changes in land use, business innovations, and many other factors. Increases in both the quantity and variety of goods produced can greatly alter.the amount and complexity of industrial wastes and challenge traditional treatment technology. The application of commercial fertilizers and pesticides, combined with sediment from growing development activities, continues to be a source of significant pollution as runoff washes off the land. Water pollution issues now dominate public concerns about national water quality and maintaining healthy ecosystems. Although a large investment in water pollution control has helped reduce the problem, many miles of streams are still impacted bv a variety of different pollutants. This, in turn, affects the ability of people to use ihe water for beneficial purposes. Past approaches used to control water pollution control must be modified to accommodate current and emerging issues Effects of Wastewater on Water Quality The basic function of the wastewater treatment plant is to speed up the natural processes by which water purifies itself. In earlier years, the natural treatment process in streams and lakes was adequate to perform basic wastewater treatment. As our population and industry grew to their present size, increased levels of treatment prior to discharging domestic wastewater became necessary.
Similar to drinking water provisions, the federal government has delegated responsibility for wastewater treatment to the provinces and- territories. There are two federal acts, however, that may apply to wastewater. The Fisheries Act prohibits the release of harmful substances into waters that-fish live in. The Canadian Environmental Protection Act governs the release of toxic substances into the environment and allows the federal government to develop regulations for the use of toxic substances.
Most provincial and territorial governments have legislation regarding wastewater treatment standards and requirements. Operators of wastewater treatment facilities must obtain permits or licenses from the provincial or territorial government, and these permits may also require additional treatments or limits on effluent discharges. For example, in British Columbia, all municipalities are required to have a Liquid Waste Management Plan; without an approved plan, discharges are illegal. Provincial and territorial governments generally assist municipal governments with kinds to build and maintain infrastructure.
Municipal governments directly oversee the wastewater treatment process, and are able to pass additional by-laws. For example, the Regional Municipality of Ottawa-Carlcfon has developed a program to eliminate toxic substances from the wastewater treatment system, requiring all industrial, institutional and commercial facilities to limit the amount of certain pollutants that are allowed into
sewers.

HOW DO CITIES TREAT WASTEWATER, TO MAKE IT SAFE FOR DISCHARGE:
There are several levels of wastewater treatment; these are primary, secondary and tertiary levels of treatment. Most municipal wastewater treatment facilities use primary and secondary levels of treatment, and some also use tertiary treatments. The ivpe and order of rreaimcni may vary from one treatment plant to another, but this diagram of the Ottawa-Carleton wastewater treatment plant illustrates the basic components. Typical Urban Wastewater Treatment Plant
The primary level of treatment uses screens and settling tanks to remove the majority of solids. This step is extremely important, because solids make up approximately 35 percent of the pollutants that must be removed. The screens usually have openings of abou 10 millimetres, which is small enough to remove sticks, garbage and other large materials from the wastewater. This material is removed and disposed of at the landfill.
The water is then put into settling tanks (or clarifiers), where it sits for several hours, allowing the sludge to setde and a scum to form on the top. The scum is then skimmed off the lop, the sludge is removed from the bottom, and the partially treated wastewater moves on to the secondary treatment level. The primary treatment generally removes up to 50 percent of the Biological Oxygen Demand (BOD; these are substances that use up the oxygen in the water), around 90 percent of suspended solids, and up to 55 percent of fecal coliforms. While primary treatment removes a significant amount of harmful substances from wastewater, it is not enough to ensure that all harmful pollutants have been removed.
Secondary treatment of wastewater uses bacteria to digest the remaining pollutants. This is accomplished by forcefully mixing the wastewater with bacteria and oxygen. The oxygen helps the bacteria to digest the pollutants faster. The water is then taken to settling tanks where the sludge again settles, leaving the water 90 to 95 percent free of pollutants. The picture below shows the settling tanks in the Winnipeg Wastewater Treatment Plant. Secondary treatment removes about 85 to 90 percent of BOD and suspended solid, and about 90 to 99 percent o£coliform bacteria.

5. CLAIMS
1. Bio Toilet Waste Water Testing is a procedure which makes- clear about the water quality and
standard; We identify the Testing procedure and water usage after testing as it will utilize in
washing or track washing or somewhere else.
2. According to claim 1, it is prescribed that A toilet in which biological degradation of human
waste by inoculums takes place. . 3. According to claim 1, it is prescribed that Inoculums digests the human waste converting it
into water & gases in the process.
4. According to claim 1", it is prescribed that The name of Bio-toilet Bacteria Anaerobic Bacteria
5. According to claim 1, it is presented that Pathogens inactivation in anaerobic. biodegradation- It means out of 100 bacteria, only 1 bacterium will survive.
6. According to claim 1, it is prescribed that The steps in anaerobic digestion
i. Large polymers are converted into simpler monomers called hydrolysis
ii. Simple monomers are converted into volatile fatty acids called acidogenesis iii.« Volatile fatty acids are converted into acetic acid C02 & H2 called acetogenesis and Acetate & H2 are converted into CH4 & C02. called methanogenesis