Dear  Mr.Asim Gul Kazi  ...

Dear  Mr.Asim Gul Kazi 

Following steps the main

components of the treatment plant were suggested as follows:

1. .Static or rotary down screen,

2. Buffering tank,

3. Conditioning tank,

4.  Two bilobed reactors,

5. Aeration tank,

6. Settling tank,

7.  Sludge holding tank,

8.  Sludge thickener, and

9. Centrifuge                                                                                                                    

The above components are provided with different types of pumps, air blowers, storage tanks, piping, control and instrumentation system.

your waste water is only 30 m3/hr so quantity is less, but all the step either large or small is necessary.

In small plant Biological treatment processes have the primary purpose of removing organic materials from the effluent. Biological treatment process is expected to remove only biodegradable fraction of the organic materials present. Aeration devices in biological treatment reactors should be designed as that they can transfer oxygen at a sufficient rate to satisfy the demand of the biomass and maintain the dissolved oxygen concentration above 2 kg/m3.

Conditioning Tank,Caustic Dosing Facilities and FeCl3 and Micronutrients Dosing Facilities are the part of treatments,

FeCl3 and micronutrients dosing facilities are to be designed for adding Fe, and micronutrients (if required, Co, Cu, Mo and Ni) as a nutrient (in the feedline to the reactor). Design average Fe requirement is 5 ppm. Design average concentrations

for Co, Cu, Mo and Ni are respectively 0.01, 0.025, 0.001 and 0.035 ppm. 

for detail please find attached herewith imp article and flow diagram.

Regards,

Prem Baboo