Wastewater treatment or
sanitation is a process used to convert the polluted water into water that can
be safely discharged into the environment. During this process, pollutants are
removed or broken down. The treatment of waste involves treatment of various
particles just like human waste, solid waste, sewage and sludge.
PROCESSES INVOLVED IN WASTEWATER TREATMENT
Phase separation: In this
process, it removes the solid particles from the pollutants. A process like ion
exchange and reverse osmosis distillation are used to separate the
microparticles which are non-dissolvable. This process is very lengthy and can
take days before the process can proceed to the next step
Oxidation: Oxidation
reduces the BOD (Biological oxygen demand) of the wastewater. It converts the
impurities to carbon dioxide and some harmless biosolid.
Sewage plant treatment:
This is a large process where the local municipality sets up a two-step primary
process to remove solid wastes from the water and then to chemically treat the
organic material as well as the nitrogen phosphorus and sometimes pathogenic
bacteria also.
Wastewater treatment in industries
Disposal of the
waste waters from industries is a huge and costly problem. Large-scale
industries like petrochemical industries have treatment plant at their
facility, in co-operation with the local government without causing any harm to
the community. Various industrial wastewater treatment systems are listed below.
Petrochemical treatment:
Anaerobic process is used to degrade complex organic pollutants from the water.
Large surface area for the UV and RO treatment of the water is done to reduce the
ammonia- nitrogen content in the water.
Textile Effluents: In the
textile industry wastewater is a major concern. Water is used for cleaning the
raw material and for flushing the product during production. The main
ingredients of the wastewater are fat, oil, colour and other chemicals. The
treatment process is not same in all factories. A revolutionary technology called
AAA™ produces 30 percent less sludge and is becoming rapidly popular among
textile processors.
Pharmaceutical Waste-water Treatment: A wide range of products are made in pharmaceutical industries,
with which a large number of chemical materials are being used throughout the
process. Thus, a large number of waste particles are generated in the industry
which acts as contaminants or toxins that are very much harmful to the whole
environment. That's why AHR-P tech has improved solid retention and enhanced water
quality, consistent quality wastewater treatment and reduced sludge
generation.
No comments:
Post a Comment