Oil-containing sewage treatment system

Abstract

An oily waste-water treatment system contains a separator for separating oil from water and a sub-system of an artificial wet-land. Said oil / water separator consistes of successively: an impurity removing tank, a single step separator, a clean water tank, there are inlets on the upper parts of the tanks and outlets on the lower parts of the tanks. The inlets / outlets of these tanks are connected successively. And vents are placed on the tops of the tanks; and connecting, through the control valves, respectively to the general gas-drainage / oil drainage pipe. And there are mud outlets at the bottoms of the tanks; and connecting, through the control valves, to the general mud pipeline respectively. The effluent from the separator is pumped into the artificial wet land, which consisting of: a water pump well, an artificial wet land, a control well. Advantages: compact structure, low cost, obvirous economic benefit.

Description

technical field

[0001] The invention relates to environmental protection technology, in particular to a technology of an oily sewage treatment system in a complete set of environmental protection equipment. Background technique

[0002] The purpose of oily sewage treatment is to remove oil, suspended solids, additives and other unfavorable components in the water, so that the treated sewage can be discharged directly. The technologies used include more than a dozen methods such as gravity separation, coarse granulation, flotation, filtration, membrane separation and biological methods. The water quality components of oily sewage are complex and vary greatly, so the treatment process should be selected. The development of new equipment and agents, the development of new processes, and the application of new technologies have become new trends in the development of oily sewage treatment.

[0003] In the "Chemical Machinery" magazine, 2002, 29 (3): (140-142 pages, 146 pages) ...

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