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Method for preparing sludge treatment agent and method for treating sludge

A technology for sludge treatment and sludge, which is applied in the field of preparation of sludge treatment agent and sludge treatment, can solve the problems of high cost, incomplete removal, low removal efficiency of heavy metals, etc., to achieve stability guarantee and outstanding synergistic passivation effect , Removal of heavy metals and significant effect of passivation

Pending Publication Date: 2021-06-08
金风环保有限公司
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Problems solved by technology

[0010] Aiming at the problems of low removal efficiency, high cost, and incomplete removal of heavy metals in sludge, the present invention provides a method for preparing a sludge treatment agent and a method for treating sludge, so that heavy metals in sludge can be removed resourcefully and Passivation of heavy metals in sludge

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  • Method for preparing sludge treatment agent and method for treating sludge
  • Method for preparing sludge treatment agent and method for treating sludge
  • Method for preparing sludge treatment agent and method for treating sludge

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Embodiment Construction

[0028] Hereinafter, the inventive concept will be described in detail in conjunction with the accompanying drawings. However, the following specific embodiments are only used to fully convey the inventive concept to those skilled in the art, and do not limit the scope of the present invention. The scope of the invention is defined by the appended claims and their equivalents.

[0029] A large amount of sludge is produced during sewage treatment. Sludge is composed of bacterial micelles formed by various microorganisms, organic and inorganic substances adsorbed and water, including a large amount of heavy metals. In order to fully utilize sludge, it is necessary to remove heavy metals included in the sludge. To achieve this purpose, the present invention mainly utilizes a sludge treatment agent loaded with layered bimetallic oxides on iron-carbon fillers to achieve efficient and low-cost removal of heavy metals in sludge.

[0030] The sludge treatment agent according to the c...

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Abstract

A method of preparing a sludge treatment agent and a method for treating sludge are provided. The method for preparing a sludge treatment agent comprises the following steps of: providing an iron-carbon filler; loading a layered double hydroxide on the iron-carbon filler; and carrying out first roasting on the iron-carbon filler loaded with the layered double hydroxide to obtain the sludge treatment agent. According to the conception of the invention, the iron-carbon filler is adopted to load the layered double hydroxide, so that the removal and stabilization treatment of heavy metals in sludge can be realized.

Description

technical field [0001] The invention belongs to the field of sludge treatment, and in particular relates to a method for preparing a sludge treatment agent and a method for treating sludge. Background technique [0002] During the sewage treatment process, most of the pollutants in the sewage will be transferred to the sludge through adsorption and precipitation. Sludge is composed of bacterial micelles formed by various microorganisms and their adsorbed organic and inorganic substances and water. Especially harmful substances such as refractory organics, heavy metals, and pathogenic microorganisms in sewage will concentrate in sludge after separation. [0003] Sludge heavy metal treatment methods mainly include biological leaching technology, phytoremediation technology, electric remediation technology, chemical forest washing method, artificial wetland technology, etc. [0004] Biological treatment technology mainly uses microorganisms to react with heavy metals such as o...

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Application Information

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IPC IPC(8): C02F11/00C02F101/20
CPCC02F11/004C02F11/006C02F2101/20
Inventor 耿翠玉
Owner 金风环保有限公司
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