Wastewater Treatment in industries can help save costs and prevents hazards. There are various types of contamination of wastewater that need treatment.
Water contamination from solids is treated using sedimentation, filtration or ultra-filtration. The uncomplicated sedimentation techniques are useful in many cases while the slurry or sludge is removed in a cost effective manner.
Where the density of the solid is closer to the density of water serious problems may arise and these are treated using filtration or ultra-filtration techniques. In case sedimentation or filterability of small particles is a problem flocculants are used in the treatment process to resolve the problem. These are also used in swimming pool or drinking water filtration to help eradicate microscopic elements.
Where wastewater is contaminated by oil and grease an American Petroleum Institute (API) oil-water separator is used. Certain oils can be removed from the surface of water using skimming apparatus while hydraulic oils and those that have sullied to a certain degree require further treatment. With the separator the oil rises to the surface while the solids settle down. The water layer is sent for further removal of residual oil and then to a biological treatment unit for removal of detrimental dissolved chemical compounds. Another option is the parallel plate separator that includes tilted parallel plate assemblies also called as parallel packs. It requires significantly less space than a conventional API separator to achieve the same results.
In the category of soft organics, organic material from plants and animals can be treated using extended conventional wastewater treatment processes such as activated sludge or trickling filter. Problems can arise When the wastewater is excessively diluted with washing water or concentrated with blood problem can arise. Cleaning agents, disinfectants, pesticides, or antibiotics can have a harmful impacts on treatment processes.
Hard organics are synthetic organics such as solvents, paints, pharmaceuticals, pesticides and coking products. Water treatment methods include distillation, adsorption, incineration, chemical immobilization or landfill disposal. Some detergents can cause biological degradation and require a customized form of wastewater treatment. Water has to be tested to verify the characteristic of the pollutant. Another type of contamination found in industrial wastewater is caused by acids and alkalis. This can be treated using Neutralization. This process results in a solid residue that can also be toxic and requires treatment.
Wastewater streams with hardness ions can be easily treated through a process of de-ionization. Toxic materials in wastewater are metals, acids and alkalis, non-metallic elements such as arsenic or selenium. These can often be precipitated out by changing the pH or by treatment with other chemicals.
Water contamination from solids is treated using sedimentation, filtration or ultra-filtration. The uncomplicated sedimentation techniques are useful in many cases while the slurry or sludge is removed in a cost effective manner.
Where the density of the solid is closer to the density of water serious problems may arise and these are treated using filtration or ultra-filtration techniques. In case sedimentation or filterability of small particles is a problem flocculants are used in the treatment process to resolve the problem. These are also used in swimming pool or drinking water filtration to help eradicate microscopic elements.
Where wastewater is contaminated by oil and grease an American Petroleum Institute (API) oil-water separator is used. Certain oils can be removed from the surface of water using skimming apparatus while hydraulic oils and those that have sullied to a certain degree require further treatment. With the separator the oil rises to the surface while the solids settle down. The water layer is sent for further removal of residual oil and then to a biological treatment unit for removal of detrimental dissolved chemical compounds. Another option is the parallel plate separator that includes tilted parallel plate assemblies also called as parallel packs. It requires significantly less space than a conventional API separator to achieve the same results.
In the category of soft organics, organic material from plants and animals can be treated using extended conventional wastewater treatment processes such as activated sludge or trickling filter. Problems can arise When the wastewater is excessively diluted with washing water or concentrated with blood problem can arise. Cleaning agents, disinfectants, pesticides, or antibiotics can have a harmful impacts on treatment processes.
Hard organics are synthetic organics such as solvents, paints, pharmaceuticals, pesticides and coking products. Water treatment methods include distillation, adsorption, incineration, chemical immobilization or landfill disposal. Some detergents can cause biological degradation and require a customized form of wastewater treatment. Water has to be tested to verify the characteristic of the pollutant. Another type of contamination found in industrial wastewater is caused by acids and alkalis. This can be treated using Neutralization. This process results in a solid residue that can also be toxic and requires treatment.
Wastewater streams with hardness ions can be easily treated through a process of de-ionization. Toxic materials in wastewater are metals, acids and alkalis, non-metallic elements such as arsenic or selenium. These can often be precipitated out by changing the pH or by treatment with other chemicals.
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