Search results for query: *

I am interested in the basic design of MBR systems. Does anyone know of any good references/ text books etc to get a basic understanding of MBR design?

We are currently running a trial plant on the wastewater from a food manufacturer. The existing plant is an activated sludge plant with the decant entering into a 100,000L tank before being discharged to sewer. From this tank we are attempting to recycle the water using a combination of...

How would 316SS go within a water treatment plant wereby i am periodically dosing 400mg/L of HCL (0.04%) into a stainless steel line. At ambient temperature and a pressure of 1-3 bar. I know that HCL has a severe effect on stainless at high concentrations but i am not sure at such a low...

I was just wondering what people's thoughts/experience was in regards to the having or not having back pressure valves and pressure relief valves in small dosing systems (3.5 - 130L/hr) The Alldos pumps i am planning on using have there own shut off system in the event of high pressure (why...

I am currently looking at a project of treating 140m3/hr through activated carbon for colour removal. The water source is dam water which currently passes through 100micron screen filters. I have done some bench scale trials and a 4-6 minute contact time "seems" to work, however i would imagine...

How do they work? In relation to upsteam flows/pressures and downstream flows/pressures

Can anyone think of any problems that may be associated with using 316SS tubing as an air line for a sewage treatment plant. The air line will be fully submerged in aerated sewage. Pressure is 30Kpa. Size 1 1/2" Also thinking of running the return activated sludge from the STP in 316SS...

I just installed Visio 2000 and dont seem to have the flowchart--->Piping and instrumentation option. Does anyone know if a)wether it even should have this option b) can i download and update or add-on to be able to use it c) can it be extracted from visio 2003(as i have this, it just wont...

Just wondering what peoples thoughts/experiences are in the best way of removing oil (both free and emulsified) at low levels..say <10mg/L One particular application i am looking at wants to reuse some of there wastewater which will require an RO system to lower the TDS.....the emulsified oil...

I am after any websites or names of recommended books for guidelines/techniques on designing sewage treatment plants (0-1000EP). We will most likely be using anerobic/aerobic/clarification techniques etc however as i am new to this area i am not sure on how to design these plants for differing...

We have a reverse osmosis system that has a small feed pump which then feeds the larger high presu pump. The sum of the concentrate and permeate from the RO is 1.7m3/hr so the feed pump should be running at the same rate. According to the curve this should correspond to a pressure of 30m...

We are including a tank and mixer in a water treatment plant prior to a clarifier to enable thorough mixing of the coagulant. For this particular application we dont believe an inline static mixer is suited. Just after some input for how large i should make this tank. The flow rate is...

Is it ok to weld 316SS to 2205(duplex) stainless steel. On a seawater RO(quite high pressures) the duplex is the pipework and the 316 is a ball valve.

Does anyone have a feel for the amount of caustic(50%) i will need to add to wastewater to raise the pH from say 5-7. I dont have enough information on the wastewater to look at detailed water chemistry.

Looking at dosing Ferric Chloride before a clarifier. What sought of dosing rates will i be looking at?