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Method for treating biological hanging films with high-alkali type saline-alkali water

A technology for biological treatment and saline-alkali water, applied in the field of water treatment, can solve the problems of long film hanging time and easily damaged biofilm, and achieve the effect of increasing the nitrosation rate and accelerating mass transfer.

Active Publication Date: 2017-06-27
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for biological treatment of high-alkaline saline-alkali water in order to solve the problems of long film-hanging time and easy damage of biofilm in existing biological treatment

Method used

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  • Method for treating biological hanging films with high-alkali type saline-alkali water
  • Method for treating biological hanging films with high-alkali type saline-alkali water

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Experimental program
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specific Embodiment approach 1

[0017] Specific embodiment one: the method for the high-alkaline saline-alkali water biological treatment of the present embodiment to form a film is realized according to the following steps:

[0018] 1. The biofilm culture system consists of a fixed biological bed culture pool A and a mobile biological bed culture pool B. Microbial strains of nitrifying bacteria and denitrifying bacteria are inoculated on the buoyant filter material carrier C, and then the buoyant bacteria with microbial strains are inoculated. The permanent filter material carrier C is filled in the fixed biological bed culture pool A and the mobile biological bed culture pool B respectively;

[0019] 2. A stainless steel mesh 5 is laid on the pool surface of the fixed biological bed cultivation pool A, and an annular recoil pipe 4 is arranged in the middle of the fixed biological bed cultivation pond A, and the annular recoil pipe 4 is connected with the fixed bed recoil inlet pipe 3 Tong, on the outer wal...

specific Embodiment approach 2

[0025] Embodiment 2: This embodiment is different from Embodiment 1 in that the pool body material of the fixed biological bed cultivation pool A and the mobile biological bed cultivation pool B described in step 1 is reinforced concrete or glass fiber reinforced plastic. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0026] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the buoyant filter material carrier C is a PP plastic ball. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention relates to a method for treating biological hanging films with high-alkali type saline-alkali water and belongs to the technical field of water treatment. The invention aims to solve the problems that the treatment time of existing biological hanging films is long, and the biological films are easy to damage. The method for treating the biological hanging membrane comprises the following steps: 1, a biological film culture system consists of a fixed biological bed culture pool and a movable biological bed culture pool, and microbial strains are inoculated on floating filter material carriers; 2, the floating filter material carriers in the fixed biological bed culture pool are closely arranged above a stainless steel mesh, water is sprayed through an annular water outlet pipeline for biological treatment culture, and backwashing is performed during the culture to obtain the floating filter material carriers adhered with the biological films; 3, water is sprayed in the movable biological bed culture pool through the annular pipeline to keep moving the floating filter material carriers for biological film culture; 4, the floating filter material carriers are respectively transferred into a fixed biological filter and a movable biological filter. The method provided by the invention has the benefit that the biological treatment culture is constantly simulated through water flow, so that the culture of the biological films is accelerated, and the adhesion quality of the biological films is improved.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a method for biofilm formation. Background technique [0002] At present, the problems that our country is facing are the lack of water resources, uneven regional distribution, increasing land salinization, a large amount of saline-alkali water and soil resources that are suitable for fishing have been in a state of waste for a long time, and there is a lack of good water that can be directly used by people. Saline-alkaline water that cannot be used directly. As fishery occupies an increasingly important position in my country's agricultural development, the available resources for fishery production are shrinking, and the social demand for aquatic products is increasing. The development of water resource fishery, the development of new fields of saline-alkali fishery production, to solve the problem of using part of saline-alkali water, rational and effective...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N11/00C02F3/34C02F103/20
CPCC02F3/34C02F2103/20C12N11/00
Inventor 韩世成刘红柏刘洋
Owner HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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