How to treat grease sewage with coal-based activated carbon?
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Posted by Carrie Ge - Filed in Arts & Culture - 804 views
The composition of oily wastewater is messy, the oil content and the way the oil exists in the water are different, and in most cases it is often mixed with other wastewater, so the single method is often not effective. How to treat grease sewage with coal-based activated carbon? Let's take a look below!
In these processes, common treatments include gravity separation, flotation and centrifugal separation. Mainly remove oil slick and oil wet solids. visit website The secondary treatment includes filtration, coarse granulation, chemical treatment, etc., telling you that it is mainly to demulsify and remove dispersed oil. Advanced treatment includes ultrafiltration, activated carbon adsorption, biochemical treatment, etc., mainly to remove dissolved oil.
Coal activated carbon
In the treatment of refinery wastewater, the substances adsorbed by coal-based activated carbon take advantage of hydrocarbons. However, in the treatment of refinery wastewater, the water contains many kinds of adsorbed substances and is relatively messy. In oil refinery sewage, process sewage or oily drainage are the usual treatment objects. At that time, because this kind of sewage contains floating oil and suspended matter, it is not suitable to treat it directly with activated carbon.
Therefore, in the process of wastewater treatment in the refinery, it is necessary to use coagulation sedimentation, coagulation pressurization and flotation, sand filtration, and combined methods for pretreatment. It is more effective to use activated carbon treatment on the basis of removing oil and suspended matter. . The coal-based activated carbon adsorption method and the activated sludge chemical treatment method are used as a good method.chinactivecarbon.com