Find out everything there is to know about Sewage Waste Management. Get your doubts and queries answerd by the global Sewage Waste Management community - (5)
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Came across a story that there is a new technology for sewage water management industry in Netherlands
"The strength of the Nereda technology lies in special bacteria that grow in concentrated and fast settling granules. Conventional methods of treating wastewater use bacteria in fluffy flakes, which take much more time to separate from the treated water."
Source: http://www.waterworld.com/index/display/article-display/7802776492/articles/waterworld/world-regions/europe/2011/12/Netherlands-sewage-treatment-plant.html
Well, the idea is clear, but is it possible for some bacteria to leave the organic clumps in the form of concentrated granules while most bacteria make them into fluffy flakes? -
Alemarcs wants to know antibiotics 7 months ago
Can I use antibiotic when I culture chlorella in wastewater? what is the antibiotic concentration?
- View all 2 answers
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Antibiotics to reduce contamination from waste water so as to have mono-algal culture.
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Narsi wants to know In New Zealand, Composting toilets on agenda 9 months ago
A treatment for human excrement used in post-earthquake Christchurch is to be taught here.
Whangarei resident James Bellamy has twice travelled to Christchurch to teach earthquake-struck residents how to build and use composting toilets.
With much of the city's sewerage and water pipes damaged by the quakes, the composting toilets are a suitable alternative as they do not need water, can be used indoors, do not smell and create no pollution, he says.
http://www.stuff.co.nz/auckland/local-news/northland/whangarei-leader/5446780/Composting-toilets-on-agenda -
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Sanitary sewer overflow (SSO) is a condition whereby untreated sewage is discharged into the environment prior to reaching treatment facilities thereby escaping wastewater treatment. Human health impacts caused by this include significant numbers of gastrointestinal illness each year, although death from one overflow event is uncommon. Ecological consequences include fish kills, harm to plankton and other aquatic microflora and microfauna. Turbidity increase and dissolved oxygen decrease in receiving waters can lead to accentuated effects beyond the obvious pathogenic induced damage to aquatic ecosystems. Treating the waste water before discharging it underground is one way around it.
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Constructed wetlands simulate natural wastewater treatment systems, using flow beds to support water-loving plants. The roots of these plants help provide an aerobic environment to aggressively break down contaminants. Constructed wetlands can offer an affordable solution to wastewater for sites with some of the following characteristics: warm climate, failed conventional absorption field, narrow or oddly-shaped lot, high water table, low soil percolation, high organic matter/suspended solids in wastewater and enough unshaded area.
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Kyzyl 5
months ago
Answer this question / Share a link"...Although the Duluth facility uses some of the most advanced technology for cleaning wastewater -- so-called tertiary treatment -- the study identified it as an important source of antibiotic resistance genes. Sampling of water at 13 locations detected three genes, for instance, that make bacteria resistant to the tetracycline group of antibiotics, which are used to treat conditions ranging from acne to sexually transmitted diseases to anthrax and bubonic plague. LaPara's team says their research demonstrates that even the most high-tech sewage treatment plants may be significant sources of antibiotic resistance genes in waterways.The Duluth sewage treatment plant study appears in ACS' journal Environmental Science & Technology. The authors acknowledge funding from the National Science Foundation and the Minnesota Environment and Natural Resources Trust Fund. The American Chemical Society is a non-profit organization chartered by the U.S. Congress. With more than 163,000 members, ACS is the world's largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio." [http://www.waterworld.com/index/display/article-display/6551521175/articles/waterworld/wastewater/treatment/2011/12/Sewage-treatment-plants-may-contribute-to-antibiotic-resistance.html "Sewage treatment plants may contribute to antibiotic resistance problem"].