Answered
In Science
How much water is in sewage?
Nearly 100%. Sludge before thickening is usually 0.5% solids, and the solid chunks that are eventually hauled off to the dump are above 10% solids.
Results for: Sewage
Answered
In Biology
How do sewage disposals affect the environment?
sewage disposals hurt a big part of the environment. When it all gets dumped into rivers and lakes, it uses up the dissolved oxygen the fish need to live. Also, when its not p…roperly collected, the garbage gives a foul smell that causes air pollution. Another example of how it hurts the environment is the rejected garbage could damage the vegetation and the ground by putting chemicals in the sediment. hope this answers your question! (MORE)
Answered
In Technology
What is sewage sludge?
Sewage sludge is the solids that are left over at the end of the sewage treatment process. The products of sewage treatment are: clean water which is released to the environme…nt and sludge. Sludge consists mostly of cellulose (in the form of dead bacteria) and water. Cellulose is also what wood is made from; it does not decompose easily which is why the cellulose has not been broken down in the sewage treatment plant. The water content of sludge will vary from 30% water to 90% water depending on how much the sludge has been dewatered at the treatment plant. If you can imagine the appearance of a magazine after it had been through a food processor with just enough water to keep it soggy, that is what dewatered sludge will look like. Sludge should not be though of as concentrated sewage but it is still not safe to handle unless it has been processed in some way to kill harmful bacteria and viruses that are likely still living in the sludge. In North America most sewage sludge is sent to a landfill site; other options include further processing in 'Sludge Lagoons,' further biological processing and methane harvesting in an enclosed container; or processing into dry pellets for use on gardens. If sludge is sold to the public it will be heat processed and/or dried to kill bacteria. It will also be tested for contaminants such as dissolved metals that may be present in the raw sewage and not removed by the treatment process. (MORE)
Answered
What is the purpose of excreta and sewage disposal?
to help prevent gastro intensinal infection including paratism. to help protect conserve water resources. to prevent contamination of drinking supplies. to …help promote health and well being are conductive to further socio- econamic development. to prevent the groscontamination of surface water use for bathing and other resourceful uses. _kath_29 (MORE)
Answered
Are tilapia raised in sewage plants?
No, they aren't. There was a Dirty Jobs episode where tilapia were used to clean the tanks of another farmed fish. But that isn't the norm for grocery store fish. Tilapia ar…e bottom feeders in nature, as are crab, catfish halibut, flounder, plaice, sole, eels, cod, haddock, bass, grouper, carp, bream (snapper). And we don't seem to have any issues with eating those fish. Tilapia we buy in stores are pond raised, and they have a varied diet. See the related link below for a well-researched article on the topic. (MORE)
Answered
What is domestic sewage?
is the primary source of pathogens (disease-causing microorganisms) and putrescence organic substances. Because pathogens are excreted in feces, all sewage from cities and… towns is likely to contain pathogens of some type, potentially presenting a direct threat to public health. (MORE)
Answered
In Pollution
What is Difference between treated sewage and untreated sewage?
Untreated sewage is waate product from factorries, nuclear facillities and untreated human waste. This waste is highly dangerous as it contains bacteria, virus, etc... This… waste if mixed with river water or water system can cause large damage not just to human but aquatic life aswell. Treated sewage is sewage which is filtered and treated with chlorines and other chemical, after the process the water is ready to be mixed with river, etc. This water is even ready to drink. (MORE)
Answered
How is sewage cleaned?
In short, it is pumped through a number of settling tanks and aerobicised. Microbes consume much of the waste and cleaner water emerges, suitable for agriculture and industria…l uses. (MORE)
Answered
Why is sewage activity necessary?
Sewage activity is necessary as it transports all you waste to a designated area such as a landfill or te incineration plant. Without these, you would have to keep your waste …in your house until the waste truck comes to pick it up everyday. This would waste lots of time and money. This would definitely affect cleaniness and hygiene in the areas. (MORE)
Answered
In Biology
What percentageof sewage is usually water?
Sewage is the wastewater released by residences, businesses and industries in a community. It is 99.94 percent water, with only 0.06 percent of the wastewater dissolved and su…spended solid material. (MORE)