Anaerobic particle sludge rapid culture method suitable for oil refining and chemical engineering wastewater treatment

A technology for anaerobic granular sludge and chemical wastewater, applied in the direction of anaerobic digestion treatment, waste fuel, etc., can solve the problem of the decrease of microbial-pollutant mass transfer efficiency, the difficulty of increasing the concentration of anaerobic sludge, and the formation of anaerobic granular sludge Difficulties and other problems, to achieve the effects of strong resistance to water quality and environmental conditions, improved treatment efficiency, and increased microbial biomass per unit volume

Active Publication Date: 2015-12-30
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

This is because: when UASB is applied to petroleum and chemical organic wastewater, the complex organic pollution composition and frequent impacts on water quality and quantity make it very difficult to form an efficient anaerobic sludge system, especially anaerobic granular sludge
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  • Anaerobic particle sludge rapid culture method suitable for oil refining and chemical engineering wastewater treatment
  • Anaerobic particle sludge rapid culture method suitable for oil refining and chemical engineering wastewater treatment

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[0025] The invention provides a rapid cultivation method of anaerobic granular sludge suitable for oil refinery and chemical wastewater treatment, which mainly includes the following two steps: (1) domestication: taking facultative sludge from the biochemical process of sewage treatment plant as inoculation sludge Use sodium acetate solution as the organic substrate at the initial stage of cultivation, and as the cultivation progresses, add oil refining and chemical wastewater to the organic substrate and gradually increase the blending ratio of refining and chemical wastewater until the organic The substrate is domesticated and cultivated to form an efficient anaerobic sludge system; (2) Granulation: acrylamide polymer and peat soil are used as composite nucleating agents, and are added to the domesticated anaerobic sludge in batches and multiple times , to promote the nucleation and granulation of anaerobic sludge to form more efficient anaerobic granular sludge.

[0026]The...

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Abstract

The invention relates to an anaerobic particle sludge rapid culture method suitable for oil refining and chemical engineering wastewater treatment. The method comprises the following steps: 1, domesticating: taking facultative sludge of a sewage treatment field biochemical technology as inoculation sludge, adopting a sodium acetate solution as an organic matrix in the initial culture stage, adding oil refining and chemical engineering wastewater to the organic matrix with the implementation of culture, and increasing the blending proportion of the oil refining and chemical engineering wastewater until the oil refining and chemical engineering wastewater is used as the complete organic matrix for culture; and 2, granulating: adding an polymer and turfy soil to domesticated anaerobic sludge in batches to promote granulation of the anaerobic sludge. The cultured anaerobic particle sludge obtained through the method has high concentration of microbes, large concentration and particle size, high organic volume load and hydraulic load, strong water quality and environment condition impact resistance and high organic pollutant degradation efficiency, and is especially suitable for anaerobic biochemical treatment of high concentration wastewater in the fields of petroleum and chemical engineering.

Description

technical field [0001] The invention relates to a rapid cultivation method of anaerobic granular sludge, in particular to a rapid cultivation method of anaerobic granular sludge suitable for anaerobic biochemical treatment of refractory oil refining and chemical wastewater, belonging to the technical field of petroleum and chemical wastewater treatment. Background technique [0002] The key to upgrading oil refining and chemical wastewater to meet standards is biochemical treatment, and the key to biochemical treatment process is anaerobic biochemical treatment. Anaerobic can not only recover energy through microbial reduction of COD, but also improve the biodegradability of refractory organic pollutants (such as polycyclic aromatic hydrocarbons and heterocyclic compounds) by changing the chemical structure to ensure the subsequent aerobic biochemical processing effect. [0003] The high-efficiency anaerobic reactor has higher microbial concentration, larger sludge concentr...

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Application Information

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IPC IPC(8): C02F3/28
CPCY02E50/30
Inventor 李耀彩陶卫克陈扬许双双陈春茂王宇马静园马文峰王庆宏郭绍辉
Owner BC P INC CHINA NAT PETROLEUM CORP
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