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A method for promoting aerobic sludge granulation by mycelium balls

A technology of aerobic sludge and mycelium balls, which is applied in the field of environmental bioengineering, can solve the problems of shortening the sludge granulation culture period, slow sludge sedimentation speed, and low sludge concentration, and achieves shortened culture period and easy operation , Enhance the effect of processing efficiency

Active Publication Date: 2019-04-23
沈阳风景园林股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The formed sludge particles have a compact structure, good settling performance, high physical strength, and strong impact load resistance, which not only solves the problems of slow sludge settling speed and low sludge concentration in traditional SBR reactors, but also greatly shortens sludge granulation long-term cultivation cycle, improve the long-term operation stability of sludge particles in the reactor, and enhance the efficiency of organic wastewater treatment

Method used

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  • A method for promoting aerobic sludge granulation by mycelium balls
  • A method for promoting aerobic sludge granulation by mycelium balls
  • A method for promoting aerobic sludge granulation by mycelium balls

Examples

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Embodiment 1

[0031] 1. Preparation of chlorophenol simulated wastewater

[0032] Use tap water to prepare simulated wastewater containing 2-chlorophenol, and its components include: 0.5 g / L glucose, 0.1 g / L (NH4)2SO4, 0.05 g / L MgSO4 7H2O, 0.062 g / L KH2PO4, 0.062 g / L K2HPO4, 0.012 g / L CaSO4, 50 mg / L 2-chlorophenol, pH natural. At this point, the influent COD concentration is about 550 mg / L.

[0033] 2. Preparation of mycelium balls

[0034] On the aseptic operating bench, use a sterile pipette to pipette 10 ml of fungal spore suspension (about 105 spores per ml of deionized water) into a conical flask filled with 90 ml of sterile chlorophenol simulated wastewater. Seal the Erlenmeyer flask with sterile gauze and place it in an air bath shaker for shaking culture at a speed of 160 rpm and a culture temperature of 30°C. After culturing to form mycelium balls with uniform size and a diameter of about 2 mm, take them out and filter them with sterile gauze, wash them with sterile normal salin...

Embodiment 2

[0042] 1. Preparation of simulated chlorophenol wastewater

[0043] Use tap water to prepare simulated wastewater containing 2-chlorophenol, and its components include: 1.5 g / L glucose, 0.5 g / L (NH4)2SO4, 0.05 g / L MgSO4 7H2O, 0.01 g / L KH2PO4, 0.01 g / L K2HPO4, 0.02 g / L CaSO4, 100 mg / L 2-chlorophenol, pH natural. At this time, the influent COD concentration is about 1700 mg / L.

[0044] 2. Preparation of mixed mycelium balls

[0045] On a sterile operating bench, use a sterile pipette to inoculate 10 ml of fungal spore suspension (about 107 spores per ml of deionized water) into 90 ml of sterilized and cooled simulated chlorophenol wastewater. After the Erlenmeyer flask was sealed with sterile gauze, it was placed in an air bath shaker for shaking culture at a speed of 180 rpm and a culture temperature of 28°C. After culturing to form mycelium balls with uniform size and a diameter of about 1 mm, take them out and filter them with sterile gauze, wash them with sterile normal s...

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Abstract

The invention provides a method for promoting granulation of aerobic sludge through mycelium pellets and relates to environment bioengineering. The method includes the following steps that chlorophenol model wastewater is prepared; the mycelium pellets are prepared; the mycelium pellets are put into an SBR; the reactor is started and aerobic granular sludge is cultured; in the process that the reactor is started and runs, the particle size, appearance, settlement performance, density, water content, porosity and other properties of the aerobic granular sludge are periodically observed, quality of outflow water is periodically detected, and the sludge granulation degree, the stability degree of granular sludge long-time operation and the chlorophenol model wastewater removal effect are analyzed and judged. The culture period of sludge granulation can be greatly shortened, long-time operation stability of sludge particles in the reactor is improved, and organic waste treatment efficiency is enhanced.

Description

technical field [0001] The invention relates to the field of environmental bioengineering, in particular to a method for promoting aerobic sludge granulation by mycelium balls. Background technique [0002] Aerobic granular sludge (AGS) is a kind of granular aggregate activated sludge formed by spontaneous aggregation of microorganisms under appropriate environmental conditions. Compared with ordinary activated sludge, aerobic granular sludge has the advantages of compact structure, good settling performance, high biophase, good metabolic activity, strong impact load resistance, less sludge bulking and good removal of toxic and harmful substances. Therefore, it has been widely concerned by many scholars at home and abroad. However, the cultivation cycle of granular sludge takes too long, and it usually takes about 1 to 2 months from sludge acclimatization to granule maturity, and the mature granule sludge cannot maintain long-term stable operation, and is prone to disintegr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/12
CPCC02F3/1263C02F2203/004C02F2305/06Y02W10/10
Inventor 董怡华张书源王英刚张玉革吴程浩
Owner 沈阳风景园林股份有限公司
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