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Technology for treating heavy metal waste water through macroalgae

A heavy metal and seaweed technology, applied in filtration treatment, water/sewage treatment, adsorbed water/sewage treatment, etc., can solve the problems of cyanobacteria unable to grow or even die, high treatment cost, affecting equipment operation, etc., to increase the effect of wastewater treatment, The effect of facilitating regular replacement and reducing the pollution load

Inactive Publication Date: 2016-06-15
陈长胜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, some people apply cyanobacteria to the sewage treatment system, mainly through the method of cultivating cyanobacteria alone and then putting them into the aeration tank. However, a large number of bacteria and other microorganisms in the aeration tank adhere to the cyanobacteria, which will cause the cyanobacteria to fail to grow or even die. It needs to be put in continuously, and the cost of treatment is high. On the other hand, the cyanobacteria in the aeration tank may block the pipeline and affect the operation of the equipment, and the improper treatment of the living cyanobacteria will lead to excessive reproduction and cause "water blooms", causing water pollution

Method used

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  • Technology for treating heavy metal waste water through macroalgae
  • Technology for treating heavy metal waste water through macroalgae

Examples

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Effect test

Embodiment 1

[0034] A process for treating heavy metal wastewater by using macroalgae, comprising the following steps: (1) wastewater pretreatment; (2) treatment in an inactive macroalgae filter pool; (3) treatment in an inactive macroalgae adsorption pool; (4) reverse osmosis membrane The component removes the remaining heavy metal ions (5) and discharges up to the standard.

[0035] The wastewater pretreatment includes grids and primary sedimentation tanks.

[0036] The preparation process for the macroalgae used in the non-active macroalgae filter tank and the non-active macroalgae adsorption pond may further comprise the steps:

[0037] a. Preprocessing

[0038] Use fishing equipment to catch fresh large seaweed, and use seawater to clean it to remove impurities such as sediment;

[0039] b. pickling

[0040] Utilizing a hydrochloric acid solution with a mass fraction of 5% to soak the macroalgae treated in step a, remove metal ions such as calcium, magnesium, and sodium adsorbed on...

Embodiment 2

[0051] A process for treating heavy metal wastewater by using macroalgae, comprising the following steps: (1) wastewater pretreatment; (2) treatment in an inactive macroalgae filter pool; (3) treatment in an inactive macroalgae adsorption pool; (4) reverse osmosis membrane The component removes the remaining heavy metal ions (5) and discharges up to the standard.

[0052] The wastewater pretreatment includes grids and primary sedimentation tanks.

[0053] The preparation process for the macroalgae used in the non-active macroalgae filter tank and the non-active macroalgae adsorption pond may further comprise the steps:

[0054] a. Preprocessing

[0055] Use fishing equipment to catch fresh large seaweed, and use seawater to clean it to remove impurities such as sediment;

[0056] b. pickling

[0057] Utilizing a hydrochloric acid solution with a mass fraction of 10% to soak the macroalgae treated in step a, remove metal ions such as calcium, magnesium, and sodium adsorbed on ...

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Abstract

The invention discloses a process for treating heavy metal wastewater by using macroalgae, comprising the following steps: (1) wastewater pretreatment; (2) treatment in an inactive macroalgae filter pool; (3) treatment in an inactive macroalgae adsorption pool; (4) ) The reverse osmosis membrane module removes the remaining heavy metal ions (5) discharges up to the standard. The heavy metal wastewater treatment process of the present invention is simple and low in cost. Before the reverse osmosis process, an inactive macroalgae filter pool and an inactive macroalgae adsorption pool are respectively set. Effectively remove heavy metal ions, organic pollutants and inorganic pollutants in sewage, reduce the pollution load of reverse osmosis membrane modules, reduce the number of membrane module replacements, and greatly improve the anti-corrosion performance, which can be replaced regularly without causing secondary pollution.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a process for treating heavy metal wastewater by using macroalgae. Background technique [0002] Heavy metal wastewater refers to wastewater containing heavy metals discharged from industrial production processes such as mining and metallurgy, machinery manufacturing, chemical industry, electronics, and instrumentation. Heavy metal (such as cadmium, nickel, mercury, zinc, etc.) wastewater is one of the most serious environmental pollution and one of the most harmful industrial wastewater to human beings. Generally, heavy metals in wastewater cannot be decomposed and destroyed, but can only be transferred. Materialized form. The treatment methods can be divided into two categories: one is to transform the dissolved heavy metals in the wastewater into insoluble heavy metal compounds or elements, and remove them from the wastewater by precipitation and flotatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02C02F1/00C02F1/28C02F101/20
CPCC02F9/00C02F1/001C02F1/286C02F1/441C02F1/52C02F2101/20
Inventor 陈长胜
Owner 陈长胜
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