Waste Water Treatment

Why Disinfection Process is Important in Water Treatment Plant?

What is Disinfection?Disinfection is a process to destroy disease-causing organisms, or pathogens. Disinfection of water can be done by boiling the water, ultraviolet radiation, and chemical inactivation of the pathogen.

In the water treatment processes, pathogens and other organisms can be partly physically eliminated through coagulation, flocculation, sedimentation, and filtration, in addition to the natural die-off. After filtration, to [....]

Is Hypochlorite better than Chlorine Gas?

Yes, Hypochlorite better than Chlorine Gas, the Chlorine is a powerful oxidizer commonly used in water treatment for purification and disinfection, odor control, bulking control, and other applications.

Why hypochlorite is overcome with chlorine?

This is two main reason

First, In Safety point of view, the chlorine gas is the passage of stricter hazardous chemicals regulations under the Occupational Safety [....]

How to Select Poly Aluminium Chloride

Before to Select Poly Aluminium Chloride, we should understand the formula chain, in the the general formula (Aln(OH)mCl(3n-m))x and have a polymeric structure,totally soluble in water.

The length of the polymerised chain, molecular weight and number of ionic charges is determined by the degree of polymerisation. On hydrolysis, various mono- and polymeric [....]

Instead Alum Use Poly Aluminium Chloride Coagulant in Water Treatment

For water treatment applications,Now a Days number of alternative aluminium-based coagulants have been developed instead of Alum.

ADVANTAGES OF POLYALUMINIUM COAGULANTS over ALUM

1. The Polyaluminium coagulants in general consume considerably less alkalinity than alum.

2. Compared to alum it works effective over a broader pH range,PACl works satisfactorily over a pH range of 5.0 to 8.0.

3. In water [....]

Chemical Constituents of Wastewater

Chemical Constituents of Wastewater, the dissolved and suspended solids in wastewater contain organic and inorganic material.

Organic Matter may include carbohydrates, fats, oils, grease, surfactants, proteins, pesticides and other agricultural chemicals, volatile organic compounds, and other toxic chemicals (household and industrial).

Inorganics may include heavy metals, nutrients (nitrogen and phosphorus), pH, alkalinity, chlorides, sulfur, and other inorganic pollutants.

Gases [....]

Water Treatment using Silver

Silver has been suggested by some for water treatment.Its use is currently out of favor due to the EPA’s establishment of a 50 ppb MCL (Maximum Contaminate Level) limit on silver in drinking water.This limit is set to avoid argyrosis, a cosmetic blue/gray staining of the skin, eyes,
and mucous membranes.

As the disease requires a net accumulation of [....]