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IO believe StanTec (which lists on the Toronto Stock Exchange, and is based in Edmonton Alberta) has over 5,000 staff (municipal infrastructure, roads, structual design, etc.) Try either http://www.stantec.ca or http://www.stantec.com There are other fairly large Canadian civil based...

Extended aeration activated sludge process is the most common form of activated sludge treatment. Activated sludge treatment can involve primary clarification (settling basin) to remove coarse solids, followed by an aerated basin. Bacteria which grow in the aerated basin are settled out in a...

There are a large number of package treatment plant manufacturers in North America that could provide systems for your applications. Modular (containerized) systems typically have treatment capacities of up to 100 m3/d. If you are looking for such a system, you could try contact Mr. Dave...

My company specializes in small system treatment and disposal technologies from a process perspective. We have assisted a number of companies to develop technologies including passive constructed wetland systems, and mechanical treatment systems. We are also involved in carrying out technology...

The best way is using a non-intrusive technology such as a mag meter or a doppler meter. If you have a sewage lift station, you can also use volumetric measurement by electronically monitoring the on/off cycles of the pumps. The time between pump off and pump on, knowing the volume pumped...

In Canada we have a national engineering accreditation process which accredits engineering schools. There is currently a reciprocal agreement with the South African engineering school accreditation process referred to as the Washington Accord. This agreement includes the US ABET agency. On a...

I know of a facility that uses ferric chloride injection upstream to control HS formation/release. If interested, I can get further details (dosage levels, contact names/numbers, etc.).

To stop the corrosion you have to either stop the HS formation/release or protect the steel from H2S (i.e. coating).