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In-situ treatment method of fresh water aquaculture wastewater

A technology for aquaculture wastewater and freshwater aquaculture, which is applied in animal husbandry wastewater treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc. It can solve problems such as high operating costs, complicated operations, and energy waste, and reduce interference , clear division, good processing effect

Active Publication Date: 2020-01-31
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0008] The problem to be solved by the present invention is to provide a low-cost, simple-to-operate, easy-to-control, and stable long-term operating performance of freshwater aquaculture wastewater for the problems of high operating costs, energy waste, complicated operation, and difficult control in the prior art. in situ processing method

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Embodiment Construction

[0035]The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] Step 1: Screening and cultivation of bacterial flora

[0037] a. UASB cultivation and domestication (6-7): Inoculate anammox flocculent sludge (6) in UASB, use ammonium bicarbonate and sodium nitrite as nitrogen sources under anaerobic conditions, and control influent NH 4 + and NO 2 - The concentration of the concentration is gradually increased from 50mg / L and 65mg / L to 60mg / L and 80mg / L, and trace elements (CaCl 2 2H 2 O 36mg / L, MgCl 2 ·6H 2 O 40mg / L, ZnSO 4 ·7H 2 O0.215mg / L, NiCl 2 ·6H 2 O 0.095mg / L, NaSeO 4 10H 2 O 0.21mg / L, MnCl 2 4H2O 0.495mg / L, C 10 h 16 N 2 o 8 8.304 mg / L, H 3 BO 3 0.007mg / L, CuSO 4 ·5H 2 O 0.125mg / L, CoCL 2 ·6H 2 O 0.12mg / L, NaMO 4 2H 2 O 0.11mg / L, FeSO 4 ·7H 2 O 5mg / L) to meet the growth needs of microorganisms, control the temperature in the UASB to be 32~36°C, and continuously o...

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Abstract

The invention discloses an in-situ treatment method of fresh water aquaculture wastewater. The in-situ treatment method comprises the following specific steps: taking dried anaerobic ammonia oxidationgranular sludge as an inner core, taking polyvinyl alcohol, sodium alginate and silicon dioxide as outer-layer embedding agents, embedding bacillus amyloliquefaciens and nitrifying bacteria to prepare composite flora embedded spheres, taking the composite flora embedded spheres as a reaction filler, filling the composite flora embedded spheres into a grid wall to form a water-permeable biologicalreaction wall, and growing periphyton in an attached growth manner, so as to realize in-situ remediation of fresh water aquaculture wastewater. The immobilized microorganism technology can realize synchronous removal of organic matters, ammonia nitrogen and nitrite, and has the characteristics of high microorganism concentration, good activity, strong environmental tolerance and the like; meanwhile, the fresh water aquaculture wastewater is remediated in situ by utilizing the embedded spheres, disturbance to beneficial microorganisms in an ecological system is reduced, the water quality of the water body is stabilized, and the ecological balance of the raw water body is kept.

Description

technical field [0001] The invention relates to an in-situ treatment method for freshwater aquaculture wastewater, belonging to the technical field of sewage treatment. Background technique [0002] With the development of the economy, people's demand for aquatic products is increasing day by day. When the catch cannot meet the market demand, the aquaculture industry has developed rapidly. my country generally adopts high-density pond aquaculture in aquaculture. This method has brought many disadvantages while increasing production, such as the deterioration of the environment of the aquaculture waters, which has exacerbated the degree of eutrophication and water quality pollution in the adjacent waters of the aquaculture area. And cause a series of harmful ecological environment problems. [0003] Aquaculture wastewater mainly includes the following substances: First, organic matter. The organic matter in the aquaculture water body is mainly produced by the decomposition of...

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Application Information

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IPC IPC(8): C02F3/30C02F3/34A01K61/10A01K63/06C02F103/20
CPCC02F3/30C02F3/34A01K63/06A01K61/10C02F2103/20C02F2305/06Y02A40/81
Inventor 陈宏黄蓉武海鹏刘媛媛余志周璐余关龙刘珂黄金权谭诗杨
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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