Method for rapidly culturing anaerobic granular sludge applicable to pharmaceutical wastewater treatment

An anaerobic granular sludge, anaerobic sludge technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, sludge treatment and other directions, can solve the problems of long cultivation time, ecological environment pressure, etc. The effect of short incubation time, reduced solid waste discharge, and shortened formation time

Active Publication Date: 2016-09-21
浙江微技环境修复工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of this method is the long incubation time
In addition, during the production of antibiotics, a large amount of wastewater containing antibiotics will be discharged, which has caused great pressure on the ecological environment.

Method used

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  • Method for rapidly culturing anaerobic granular sludge applicable to pharmaceutical wastewater treatment

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Effect test

Embodiment 1

[0055] The remaining sludge was taken from the sewage station of a spiramycin production pharmaceutical company, and the flocculent anaerobic sludge was taken from the urban sewage treatment plant. Add NaOH to the excess sludge to adjust the pH=11, stir at 90°C for 8 hours, then add HCl to adjust the pH=9, and complete the pretreatment process of the excess sludge.

[0056] Introduce Rhodococcus erythropolis into beef extract peptone medium ( Rhodococcus erythropolis ), the bacterium was preserved in the "General Microorganism Center of China Committee for the Collection of Microbial Strains", and its preservation number is CGMCCNO. The seed liquid of the bacterial liquid was inserted into the pretreated excess sludge according to the inoculum amount of 5%, and the sludge concentration of the excess sludge was controlled at 100g / L, and it was fermented at 30°C and 180r / min for 72h. During the fermentation process, the pH is controlled at 9, and the fermentation treatment proc...

Embodiment 2

[0068] The remaining sludge was taken from the sewage station of a vancomycin production pharmaceutical company, and the flocculent anaerobic sludge was taken from the urban sewage treatment plant. Add NaOH to the excess sludge to adjust the pH=11, stir at 90°C for 8 hours, then add HCl to adjust the pH=9, and complete the pretreatment process of the excess sludge.

[0069] Introduce Rhodococcus erythropolis into beef extract peptone medium ( Rhodococcus erythropolis ), the bacterium was preserved in the "General Microorganism Center of China Committee for the Collection of Microbial Strains", and its preservation number is CGMCCNO. The seed liquid of the bacterial liquid was inserted into the pretreated excess sludge according to the inoculum amount of 5%, and the sludge concentration of the excess sludge was controlled at 100g / L, and it was fermented at 30°C and 180r / min for 72h. During the fermentation process, the pH is controlled at 9, and the fermentation treatment proc...

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Abstract

The invention discloses a method for rapidly culturing anaerobic granular sludge applicable to pharmaceutical wastewater treatment. The method specifically comprises the following steps: according to the method disclosed by the invention, performing fermentation treatment on residual sludge by adopting a mode of feeding microbial preparations, putting the treated sludge into an anaerobic reactor, mixing with anaerobic flocculent sludge to culture, and feeding nutrient elements such as N, P, Fe and Mn in the culture process, thereby obtaining the anaerobic granular sludge after about 71-98 days. The anaerobic granular sludge formation time can be greatly shortened. In addition, the anaerobic granular sludge prepared by using the method can be adopted to treat pharmaceutical wastewater of antibiotics, and has a relatively high COD removal rate and a good antibiotic degradation effect.

Description

Technical field [0001] The present invention involves the field of biotechnology, especially a method of rapid cultivation of anaerobic granules suitable for pharmaceutical wastewater treatment. Background technique [0002] In the processing scale of the production scale, the stability and efficiency of the operation depends to a large extent on whether it can cultivate the aversion particle sludge with good settlement performance and strong methane activity. If anaerobic reactorThe sludge exists with a loose floccopy, which is prone to problems such as sludge loss, low organic load, and poor treatment effect.Mature anaerobic granules are scarce, slow growth, difficult to cultivate, high factory prices, and high transportation costs.Generally speaking, inoculation of anaerobic and digestive sludge can speed up the start of the reactor and the cultivation process of anaerobic granules, but for industrialized anaerobic reactors, a large amount of anaerobic digestive sludge require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F11/04C02F11/00
CPCC02F3/2846C02F11/00C02F11/04
Inventor 陈代杰邵雷花逾冬
Owner 浙江微技环境修复工程有限公司
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