Aerobic granular sludge system construction and operation method for treating culture biogas slurry

A technology of aerobic granular sludge and biogas slurry, which is applied in sustainable biological treatment, chemical instruments and methods, animal husbandry wastewater treatment, etc. simple structure

Active Publication Date: 2015-09-02
INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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Problems solved by technology

In order to enable the aerobic granular sludge system to degrade the high-concentration pollutants in the aquaculture biogas slurry to the greatest extent, starting from the reactor itself, the generation of foam during the reaction process and the sludge attached to the effective liquid level of the reactor to cause sludge volume reduction etc.

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  • Aerobic granular sludge system construction and operation method for treating culture biogas slurry

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specific Embodiment approach

[0020] Such as figure 1 As shown, when constructing the aerobic granular sludge system, the water is introduced into the zigzag water tank (3) through the water inlet pipe (4). It flows into the reactor (15), and washes the inner wall of the reactor (15) while slowly flowing along the wall; the aerobic granular sludge system senses the pH in the solution through the pH electrode (7) during the process of treating the biogas slurry. The pH value is monitored in real time by the pH controller (1); when the pH value exceeds the set range, the computer (14) controls the peristaltic pump-acid (10) and peristaltic pump-base (11) to automatically feed the acid solution ( 12) or alkaline solution (13) to adjust the pH; feel the dissolved oxygen in the solution through the dissolved oxygen electrode (8), display its value through the dissolved oxygen detector (2), and pass the glass rotameter (6) to control the aeration volume range of the aeration equipment (17), the dissolved oxygen...

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Abstract

The invention provides an aerobic granular sludge system construction method for treating culture biogas slurry, which performs optimal regulation and control on operation parameters. The method belongs to the field of biological sewage treatment and recovery. The reactor main body for treating culture biogas slurry is an aerobic granular sludge system; and the reactor utilizes aerobic granular sludge to treat livestock/poultry culture biogas slurry, and the water inlet mode is optimized and provided with the matched-mesh screen surface during operation, thereby constructing the special reactor for the aerobic granular sludge system. The reactor comprises a pH meter, a peristaltic pump, a dissolved oxygen detection instrument, an electromagnetic air pump, a glass rotameter, a screen surface and a toothed water inlet tank. On the premise of keeping stable operation of the aerobic granular sludge system for treating culture biogas slurry, the hydrogen ion concentration, gas apparent flowing velocity and other parameters in the solution are regulated to provide a suitable environment for functional microbes. The reactor has the advantages of low resource consumption, stable operation, high treatment efficiency and the like, and is simple to operate.

Description

technical field [0001] The patent of this invention is a special reactor used in the aerobic granular sludge system to treat aquaculture biogas slurry in the process of aerobic biological treatment. On the basis of stable operation, it mainly optimizes the parameters such as the concentration of hydrogen ions in the solution and the superficial flow velocity of the gas. Regulation, belonging to the field of sewage biological treatment and reuse, is an aerobic granular sludge system specially designed to remove high-concentration ammonia nitrogen pollutants in aquaculture biogas slurry. Background technique [0002] With the development of animal husbandry, the centralized breeding of livestock and poultry has caused the excessive concentration of livestock and poultry biogas slurry, and the daily discharge is increasing day by day. According to the survey, the amount of livestock and poultry manure produced is 2.4 times that of industrial solid waste, and the chemical oxygen ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12C02F103/20
CPCY02W10/10
Inventor 刘琳游骐羽刘超翔
Owner INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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