How Does An Industrial Waste Water Treatment System Korea Work

Posted by Jeong Chungeun on December 18th, 2015

Different kinds of contaminations of industrial waste water require different methods of removing the contaminants for which an industrial waste water treatment system in Korea is used.

Removal of solids

A simple sedimentation technique is useful for removal of solids which are recovered as slurry or sludge. The solids that are very fine or ones with density similar to the density of water cause some problems. For these the process of filtration or ultrafiltration may be used. Sometimes flocculation with the help of alum salts or polyelectrolytes is also used before filtration or ultrafiltration.

Removal of oil and grease

Many oils are recovered by using skimming devices on the surface of the water. Usually oil skimmers sometimes prove to be cost effective and dependable method to remove the grease and oil from the water which makes it pure to the desired level. On other occasions this may be a method used to achieve the desired purity before using membrane filters and chemical processes. These methods are used for oils and grease which have not disintegrated and dissolved in the water, if this is the situation then more intensive methods need to be used.

Removal of biodegradable organics

Waste water treatment system management in Korea also deals with the removal of biodegradable organics from industrial waste water. Conventional methods like activated sludge or trickling filters are used for this purpose. However, there can be some problems if there is too much washing water in the waste water or is very concentrated like neat milk or blood. Even if there are other elements like disinfectants, cleaning agents, antibiotics or pesticides in the waste water it can create further problems.

Treatment of other organics

Synthetic organic materials like paints, solvents, pesticides, pharmaceuticals, coking products and similar others are usually quite difficult to treat. Often treatment methods which are specific to the product are used and these methods include distillation, advanced oxidation processing, absorption, vitrification, incineration landfill disposal or chemical immobilization. Some materials like detergents are even capable of biological degradation and in these cases some modified methods have to be used for the treatment of such waste water.

Removal of acids and alkalis

These materials are usually neutralized under controlled conditions. This neutralization process many times produces a precipitate which will require treatment in the form of a solid residue which can also be toxic. In some cases gases may also be emitted which requires different kind of treatment. Usually additional treatments are required after the neutralization process is complete.

Treatment of toxic material

Toxic materials include many organic materials like silver, zinc, thallium, cadmium, alkalis, acids and non metallic elements like arsenic or selenium. These materials are usually resistant to biological process unless they are very dilute. It is often possible to precipitate the metals by changing the pH or by treating them with other chemicals. Some of them may be difficult to treat and may require landfilling or recycling after concentration.

There are many companies which provide effective industrial waste water management systems along with air pollution prevention system management in Korea