Treating water is a complex and expensive process. Why should you treat the wastewater in your company and not simply dispose of it or have it treated by public wastewater treatment plants? Why is “in-house” wastewater treatment so important? Here it is necessary to prioritize the technologies according to the most important criteria to identify the optimal wastewater treatment system for oneself. 7 percent evaporation residue and a wastewater volume of up to 30,000 cubic meters/year", the three wastewater treatment processes overlap. In the area of "relatively low pollution load of up to approx. In this range, the processes must be carefully weighed against each other. But the following figure also shows that there is a wide range in which all the listed processes are applicable. Vacuum distillation is not suitable if the process water contains latex, lacquer, paint or protein. If the contaminant load is almost exclusively inorganic, membrane filtration processes can be ruled out because they are too costly. In some cases, there is only one optimal method for the process water to be treated and it is governed by the amount and degree of contamination of the water. Which wastewater treatment process is appropriate for which type of wastewater? Key players here are belt filters for coarse contaminants or ultrafiltration for the smallest dirt particles.īy far the most commonly used industrial wastewater treatment methods are chemical-physical splitting plants, membrane plants and vacuum distillation systems. In membrane processes, filters are used to retain the contaminants.These include, for example, flow-through neutralization or flocculation and precipitation followed by sludge separation. Chemical processes work by the addition of chemicals to improve the wastewater properties.This type of treatment’s main arena is the treatment of urban wastewater in sewage treatment plants - here bacteria take the lead in the purification of the wastewater. Biological processes are rarely used in industry and if so, then most commonly in combination with other processes. ![]() ![]()
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