You can treat wastewater effectively with several techniques.
As technology advances, industries are producing more wastewater than ever before. Much of this waste is also difficult to treat, yet discharge norms are becoming stricter. As fresh water sources are also becoming scarce, there is an urgent need to treat wastewater effectively. Ecowater treatments include electro-coagulation, electro-oxidation, photo-oxidation, electro-dialysis and diffusion dialysis.
Electro-Coagulation
Electro-coagulation has been designed to remove a range of pollutants and contaminants from water, including silt and pesticides. This ecowater treatment removes both suspended and colloidal solids. Electro-coagulation also breaks up oil emulsions in the water. This water treatment process destroys viruses and cysts and removes bacteria. Electro-coagulation also removes grease, oil and fat from water.
Electro-Oxidation
The Electrolytic Organic Destruction (EOD) process involves the use of catalytic electrodes to oxidize both organic and inorganic compounds in the water. Through this process, compounds that are carried in the water are oxidized not only directly within an electrochemical cell, but also indirectly, as chemicals are destroyed within the water itself. This ecowater technology uses electricity as the main reactant, although chemicals can be added in cases where conductivity of the water is too low.
Photo-Oxidation
This ecowater treatment involves the use of ultraviolet radiation, often as a pretreatment to break down organic matter in surface water, in order to reduce fouling in micro filtration systems that purify drinking water. Ultraviolet wavelengths break down organic carbon levels and destroy bacteria, creating water that is very pure.
Diffusion Dialysis
Diffusion dialysis is a water treatment process to reduce hazardous waste volume by recovering select acids and bases that are lightly contaminated with metals. This process is an alternative to conventional industrial wastewater treatment. Diffusion dialysis techniques are typically used to remove metallic contamination from concentrated acid solutions and are commonly used in order to recycle metal preparation baths, rather than to discharge the contents. This process functions by passing the fluid to be treated through a stack of semipermeable membranes.
Electro Dialysis
This process makes use of membranes which are semipermeable to ions, based on their charge. Electro dialysis involves the use of electrical current to reduce the ionic content of water. The water to be treated is passed between two plates with opposite electrical charges. Any nonmetals in the water are attracted to the plate with the positive charge, while metals are attracted to the plate with the negative charge. Both types of ions can be removed from the plates and discarded.
