Device and method for treating phosphorus-containing organic wastewater by using A/O soil percolation systems

A technology of organic wastewater and soil infiltration, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of low hydraulic load, large floor area, easy clogging service life, etc. Problems, to achieve the effect of accelerating degradation, prolonging service life, and slow rising speed

Inactive Publication Date: 2014-12-10
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

However, the traditional underground infiltration system has some disadvantages, such as low hydraulic l

Method used

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  • Device and method for treating phosphorus-containing organic wastewater by using A/O soil percolation systems

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Embodiment Construction

[0034] see figure 1 A kind of A / O soil infiltration system for treating sewage provided by the invention is a device for treating phosphorus-containing organic wastewater, and its main structure includes:

[0035] A centrifuge 1, utilizing the principle that the components of the suspension (or emulsion) with different densities rapidly settle and stratify in the centrifugal force field to realize liquid-solid (or liquid-liquid) separation. The water output from the centrifuge 1 is introduced into the A / O soil infiltration system 6 . The rotating speed of the centrifuge can be 900-5000r / min.

[0036] The A / O soil infiltration system 6 is constructed by the wall 4 into two sections of soil infiltration areas, namely the anaerobic soil infiltration area 3 and the aerobic soil infiltration area 9, and the outlet water of the centrifuge 1 is introduced into the anaerobic soil infiltration area through the water inlet pipe 31 3 inside the bottom.

[0037] The anaerobic soil infi...

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Abstract

The invention discloses a device for treating phosphorus-containing organic wastewater by using an A/O soil percolation system. A centrifuge guides layered discharged water into the A/O soil percolation system; the A/O soil percolation system comprises an anaerobic soil percolation area and an aerobic soil percolation area, respectively; and water discharged from the centrifuge is guided into the bottom in the anaerobic soil percolation area by a water inlet pipe; water discharged from the A/O soil percolation systems is sprayed into a surface turbulent flow screening and filtering device, so that viruses and heavy metals in the water are removed, and organic matters are mineralized or decomposed; then the water enters a rotary sand removal device to carry out sand removal, and finally clean water reaching the standard is discharged. According to the invention, an A/O process is used in a soil percolation system, and the soil percolation system is improved by using the A/O process and an alternate vertical flow concept, so that the cost and expense of deep treatment of sewage are reduced, the production of secondary pollution in the treatment process is avoided, and the effluent water quality of sewage is enhanced.

Description

technical field [0001] The invention relates to a device for treating phosphorus-containing organic wastewater by an A / O soil infiltration system, in particular to a device for removing pollutants such as organic matter, nitrogen and phosphorus in sewage. [0002] The invention also relates to a method for treating phosphorus-containing organic wastewater by using the above-mentioned device. Background technique [0003] A / O is the abbreviation of Anoxic / Oxic. It uses anaerobic hydrolysis technology as the pretreatment of aerobic biological treatment. Its advantage is that in addition to degrading organic pollutants, it also has a certain denitrification and phosphorus removal function. . The A / O biological phosphorus removal process is a sewage biological treatment system composed of anaerobic and aerobic two-part reactions. After the sewage enters the anaerobic zone, the phosphorus accumulating bacteria in the reactor absorb a large amount of BOD in the sewage during thi...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 王雷席北斗张列宇汪的华何小松黄彩红苏靖党秋玲
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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