System and method for deeply treating brown alga chemical engineering waste calcium water through double-membrane technology

A technology of advanced treatment and double-membrane method, applied in chemical instruments and methods, water/sewage treatment, flotation water/sewage treatment, etc., can solve the impact of treatment process, increase treatment cost, equipment cost and large-scale floor area and other problems, to achieve the effect of simplifying the process steps, simplifying the pretreatment process, and facilitating the scale-up of the process
CN106977007AInactive Publication Date: 2017-07-25CHINA UNIV OF PETROLEUM (EAST CHINA)
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Publication Date
2017-07-25
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a system and a method for deeply treating brown alga chemical engineering waste calcium water through a double-membrane technology. The system for deeply treating brown alga chemical engineering waste calcium water through the double-membrane technology is characterized in that a brown alga chemical engineering waste calcium water pipeline 8 is sequentially connected with a coagulation-air flotation treatment tank 1, a ceramic membrane module 2, an activated carbon tank 3 and a reverse osmosis membrane module 4, and the reverse osmosis membrane module 4 is connected with a production water pipe 9; and the ceramic membrane module 2 is connected with a settlement tank 6 through a pipeline, and the settlement tank 6 is connected with an oxidation reactor 7 and the coagulation-air flotation treatment tank 1 through a pipeline. The ceramic membrane module is used to pre-treat the waste calcium water, so the process treatment step is simplified; and the ceramic membrane module occupies a small area and has a high sewage treatment efficiency. The pretreatment using a ceramic ultrafiltration membrane system significantly reduces the pollution of a reverse osmosis membrane, reduces the cost of the pretreatment process and realizes easy technology amplification.
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Description

technical field

[0001] The invention relates to the field of sewage treatment of seaweed industrial production, in particular to the treatment of waste calcium water produced in the production process of sodium alginate products. Background technique

[0002] Seaweed processing products mainly include red algae gelatinous products and brown algae chemical products. my country's annual production capacity of alginate products is about 35,000 tons, accounting for 60% of the world's total production capacity. It is a pillar product in my country's seaweed processing industry and has been widely used in printing and dyeing, medicine, food, daily necessities and other fields. The production of 1 ton of alginate will consume 1,000 tons of fresh water, and the waste calcium water produced will account for more than 70% of all wastewater. The reuse of the above-mentioned sewage after treatment will effectively reduce the production cost of enterprises, save fresh water resources, a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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