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Method and equipment for synthesizing alginate in sewage treatment process

A sewage treatment and alginate technology, applied in water/sewage treatment, water/sewage multi-stage treatment, biological water/sewage treatment, etc., can solve the problems of consumption of raw materials for organic nutrient production, increase in production cost, etc., and achieve savings Cost of raw materials for production and the effect of environmental protection

Active Publication Date: 2018-09-18
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, purebred cultivation of these two types of bacteria requires the consumption of a large amount of organic nutrient production raw materials, which greatly increases production costs

Method used

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  • Method and equipment for synthesizing alginate in sewage treatment process
  • Method and equipment for synthesizing alginate in sewage treatment process
  • Method and equipment for synthesizing alginate in sewage treatment process

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Experimental program
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Embodiment 1

[0033] like figure 1 Shown, the method for synthesizing alginate in a kind of sewage treatment process that the embodiment of the present invention 1 provides, comprises the following steps:

[0034] The first step: the sewage is discharged into the microbial reactor 1, and under suitable environmental conditions, the organic pollutants are degraded through the metabolism of microorganisms, and the microorganisms secrete alginate; the above-mentioned microbial reactor 1 is related to the field of sewage treatment The aeration tank is similar, but the mixture system composed of microorganisms, organic pollutants, water, etc. is not limited to ordinary activated sludge, but can also be flocculated sludge, granular sludge, or even a biofilm with filler added. From the source of the aforementioned alginate, the key technical point is that the microbial reaction system must contain bacteria of the genus Pseudomonas or Azotobacter that can secrete alginate. The conditions for the e...

Embodiment 2

[0039] figure 2 Shown, the method for synthesizing alginate in a kind of sewage treatment process that the embodiment of the present invention 2 provides, comprises the following steps:

[0040] The first step: the sewage is discharged into the microbial reactor 1, and under suitable environmental conditions, the organic pollutants are degraded through the metabolism of microorganisms, and the microorganisms secrete alginate; the above-mentioned microbial reactor 1 is related to the field of sewage treatment The aeration tank is similar, but the mixture system composed of microorganisms, organic pollutants, water, etc. is not limited to ordinary activated sludge, but can also be flocculated sludge, granular sludge, or even a biofilm with filler added. From the source of the aforementioned alginate, the key technical point is that the microbial reaction system must contain bacteria of the genus Pseudomonas or Azotobacter that can secrete alginate. The conditions for the exist...

Embodiment 3

[0046] like image 3 As shown, the equipment for synthesizing alginate in a kind of sewage treatment process that the embodiment of the present invention 3 provides, comprises microbial reactor 1, alkali washing dissolving reactor 2 and ultrafiltration membrane assembly 4, and alkali washing dissolving reactor is respectively connected with The microbial reactor is connected with the ultrafiltration membrane module; it also includes a split microfiltration membrane module 3, and the split microfiltration membrane module is connected with the alkali washing dissolution reactor and the ultrafiltration membrane module respectively.

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Abstract

The invention relates to a method and device for synthesizing alginates in a sewage treatment process. The method comprises the following steps: S1: sewage is discharged into a microbial reactor, organic pollutants are degraded under the metabolism actions of microbes under proper environmental conditions, and the microbes secrete alginates; S2: muddy water containing abundant alginates in the microbial reactor flows into an alkali washing dissolution reactor; and S3: muddy water containing soluble alginates in the alkali washing dissolution reactor flows into an ultrafiltration membrane assembly, the soluble alginate solution is separated by the ultrafiltration membrane assembly, the effluent water is recycled as reclaimed water, and the alginate solution is concentrated and enters the subsequent alginate extraction technique. The method and device can recover resources in reclaimed water and produce alginates on the premise of implementing sewage purification.

Description

technical field [0001] The invention relates to a method and equipment for synthesizing alginate in the sewage treatment process Background technique [0002] Alginate, also known as alginate, kelp gum, alginate, alginate, is usually derived from large marine brown algae plants; natural polysaccharide carbohydrates can be extracted from it, such as alginic acid: (C 6 h 7 o 6 H)n and its salts. In recent years, some studies have found that alginate is not only naturally derived from brown algae such as kelp and giant algae, but also has two major types of bacteria in nature, namely, bacteria of the genus Pseudomonas and Azotobacter. Synthetic alginate. Even, some freshwater microalgae may biosynthesize alginate. [0003] As a high-value biopolymer, alginate has a wide range of applications and high economic value in the fields of food, medicine and hygiene, daily chemicals, textiles and biotechnology. For the field of sewage treatment involved in this patent, alginate i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C08B37/04C02F101/30C02F1/44
CPCC02F1/00C02F1/444C02F3/34C02F9/00C02F2101/30C08B37/0084
Inventor 曹达啟郝晓地王振胡沅胜
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE