Waste Water Treatment Process

How to separate Filter backwash water sludge?

Normally, the filter backwash water sludge very tough to remove or separate that one, generally in many plants that will have design the back wash water pipe line laid into main effluent collection tank. But this is not a right method.

Instead of that, try this method, though which has bit of cost investment involve, this is only an perfect [....]

Principle and Design of Spray Aerators

Principle and Design of Spray Aerators: The system consist more spray nozzles, which are connected in a pipe, similarly many set of pipes are well connected like square, circle and rectangle shaped form and those bunch of pipes finally links to common pipe manifold, that pipe grid located over an open-top tank

The water leaves each nozzle in a fine [....]

Most Important Factors of ETP Design | Selection

Are you going to construct new ETP for your existing industry or new industry, ensure this checklist, the following factors must be adhered while design the Efflent Treatment Plant

The Most Important Factors of ETP Design | Selection are

1. What national or international standards must you comply with?

2. What is your waste? What volume of effluent do you [....]

Oxygen Transfer Rates of Various types Aeration Devices

Select correct oxygen transfer rate equipments for the aeration tank’s air requirement, so you can be saved air compressor energy effectively

Equipments/Devices 
Typical ratings,Ib O2 /hp-hr
Submerged aerators 4.0
  Porous diffusers 1.5
Surface aerators
  Plate 2.0-2.5
  Turbine 3.0-3.5
  Propeller 2.5-3.5
  Combination aerators 2-3 2-3

Except in cases of degasification, aeration requirement is a function of degree of oxygen deficiency [....]