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Oil-containing sewage treatment system

A treatment system and technology for oily sewage, applied in biological water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. Achieve the effect of low cost, reasonable structure and low operating energy consumption

Active Publication Date: 2011-09-14
ZHOUSHAN DAREN ENVIRONMENTAL PROTECTION TECH
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  • Abstract
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Problems solved by technology

[0004] At present, the oily sewage treatment technologies commonly used in the market, such as the above two patented technologies and equipment for oily sewage treatment using similar technologies, can effectively separate oil from sewage, but cannot reduce the COD and other indicators of sewage, making The treated water cannot be directly discharged up to the standard

Method used

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Embodiment Construction

[0030] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings, but the present embodiments are not intended to limit the present invention, and any similar structures and similar changes of the present invention should be included in the protection scope of the present invention.

[0031] see figure 1 Shown, the flow process of a kind of oily sewage treatment system of the embodiment of the present invention: 1) oil separation, oily sewage enters grease trap; It is collected as dirty oil, and solid impurities are deposited at the bottom of the grease trap; in the last stage of the grease trap, most of the suspended matter and oily matter in the oily sewage are removed, which is beneficial to the next stage. Stage oil-water separator is used to prevent and reduce clogging; 2) Oily sewage treatment, oily sewage enters the demulsification separation device for impurity removal and demulsification separation...

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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) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F1/40C02F3/32C02F1/42
CPCY02W10/10
Inventor 陆效军单成亮许丹
Owner ZHOUSHAN DAREN ENVIRONMENTAL PROTECTION TECH
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