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Nutrient for aerobic treatment, aerobic treatment activated sludge culture method and device

An aerobic treatment and activated sludge technology, applied in the field of water treatment, can solve the problems of unstable water quality of external drainage, difficulty in removing phosphorus and nitrogen, sludge bulking, etc., and achieve the effect of simple structure, low cost and easy operation

Pending Publication Date: 2017-02-22
北京恒蓝环保科学研究院有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Aerobic aeration activated sludge method is often used in the biochemical treatment of refineries and chemical plants, which is effective for the removal of BOD and COD, but it is difficult to remove phosphorus and denitrification, and it is prone to sludge swelling or loss, resulting in unstable water quality of external drainage Therefore, it is of great significance to develop and utilize some new microbial strains and new nutrients that solve the above problems.

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  • Nutrient for aerobic treatment, aerobic treatment activated sludge culture method and device

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Embodiment 1

[0024] combine figure 1 As shown, the cultivation device used in the aerobic treatment activated sludge cultivation method of the present invention is first introduced, which includes an aerobic oxidation tank 1 and a water distribution tank 2. The aerobic oxidation tank 1 is a cube. In this embodiment, the aerobic oxidation tank 1 is a cube. The length of the pool 1 is 220 mm, the width is 200 mm, and the height is 650 mm. The aerobic oxidation tank 1 communicates with the water distribution tank 2 through the first pipeline 3 and the water pump 4, and the water pump 4 in this embodiment is a magnetic water pump. The bottom of the inner cavity of the aerobic oxidation tank 1 is equipped with a gas distribution device. In this embodiment, the gas distribution device adopts a plurality of microporous aerators 5, and a plurality of microporous aerators 5 are connected to at least one oxygenation pump 7 through a plurality of second pipelines 6. In this embodiment, the oxygenati...

Embodiment 2

[0031] The culture device used in the culture method for aerobic treatment of activated sludge in this embodiment is the same as the culture device in the above-mentioned embodiment 1, and will not be repeated here.

[0032] The present embodiment aerobic treatment activated sludge culture method, comprises the steps:

[0033] (1) Get a specific amount of fresh sludge in the sewage to be treated and pour it into the aerobic oxidation tank 1 for cultivation and domestication. During the domestication process, the COD of the water distribution gradually increases until it reaches 550-600 mg / liter;

[0034] (2) nutritional agent is added in the aerobic oxidation pool 1 of step (1) in batches, and this nutritional agent adds 8 gram compound amino acids, 2 gram chitosan by every 10 liters of raw water, 3 gram Tween 80 and 10 The nutrient is added into the aerobic oxidation pool 1 once every 8 hours, and the aeration treatment is carried out after adding the nutrient each time. The ...

Embodiment 3

[0038] The culture device used in the culture method for aerobic treatment of activated sludge in this embodiment is the same as the culture device in the above-mentioned embodiment 1, and will not be repeated here.

[0039] The aerobic treatment activated sludge cultivation method of the present invention comprises the following steps:

[0040] (1) Get a specific amount of fresh sludge in the sewage to be treated and pour it into the aerobic oxidation tank 1 for cultivation and domestication. During the domestication process, the COD of the water distribution gradually increases until 500-600 mg / liter;

[0041] (2) nutritional agent is added in the aerobic oxidation pool 1 of step (1) in batches, and this nutritional agent adds 3 gram compound amino acids, 5 gram chitosan by every 10 liters of raw water, 5 gram Tween 80 and 20 The nutrient is added to the aerobic oxidation pool 1 every 8 hours, and the aeration treatment is carried out after each addition of the nutrient. The...

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Abstract

The invention discloses a nutrient for aerobic treatment and an aerobic treatment activated sludge culture method and device. The culture method comprises the steps that fresh sludge in sewage to be treated is taken to be poured into an aerobic oxidation pond for performing culture and domestication; the nutrient is added into the oxidation pond in batches, the sewage treating phenomenon is detected in a day parting mode, and the nutrient is prepared from 1-10 g of compound amino acids, 1-5 g of chitosan, 1-5 g of tween 80 and 2-20 g of glucose in per 10 liter of raw water. When the concentration of sludge reaches a normal value, the sludge can be used for treating sewage. According to the nutrient for aerobic treatment and the aerobic treatment activated sludge culture method and device, on the basis of research and development of activated sludge microorganism strains, the novel and efficient nutrient for aerobic treatment can be used for culture of aerobic treatment activated sludge, the wastewater treatment capability of the obtained activated sludge can be improved, and the pollutant removal effect can be improved.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a nutrient for aerobic treatment of waste water in an oil refining and chemical plant, a method and a device for cultivating aerobic treatment activated sludge. Background technique [0002] Pollutants in refinery wastewater mainly include oil, sulfide, cyanide, volatile phenol, NH 3 -N and other toxic substances have high COD content and many refractory substances, and are affected by the alkali slag wastewater and pickling water, and the pH of the wastewater changes greatly. In order to improve the water quality of external drainage, researchers have developed some new treatment processes and technologies of new sludge biological strains. Biochemical treatment is the core of the entire process of wastewater treatment in general refinery and chemical plants. Aerobic aeration activated sludge method is often used in the biochemical treatment of refineries and chemical p...

Claims

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Application Information

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IPC IPC(8): C02F3/12
CPCC02F3/12C02F2305/06Y02W10/10
Inventor 蒋翔翔孟勇
Owner 北京恒蓝环保科学研究院有限责任公司