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Device and method for sodium thiocarbonate containing sewage treatment and resource recovery

A technology containing sodium thiocarbonate and sewage treatment, which is applied in water/sewage treatment, oxidized water/sewage treatment, multi-stage water/sewage treatment, etc. It can solve problems such as polluting the environment, affecting the production process, and failing to meet discharge requirements. , to achieve the effect of reducing production cost and improving production efficiency

Pending Publication Date: 2018-06-08
JIANGSU HENGXIN ENERGY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The wastewater discharged from production contains a large amount of soluble salts and small solid particles. If ordinary wastewater treatment equipment is used for treatment, it is difficult to treat the wastewater to the discharge standard under the existing technical conditions
The recycled water still contains a lot of impurities, which will affect the production process, and the recycling rate will be greatly reduced, and the discharged part cannot meet the discharge requirements, and there will be a risk of polluting the environment. In addition, a large amount of recyclable components in the wastewater Distributor loss, resulting in high production costs

Method used

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  • Device and method for sodium thiocarbonate containing sewage treatment and resource recovery

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Embodiment Construction

[0035] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention discloses a device and a method for sodium thiocarbonate containing sewage treatment and resource recovery. The device for sewage treatment and resource recovery comprises a sewage collection and reaction unit, a sewage treatment and circulation unit, CS2 recovery unit and a sulfur recovery unit, wherein the sewage collection and reaction unit is respectively connected with the sewage treatment and circulation unit and the CS2 recovery unit; and the CS2 recovery unit is connected with the sulfur recovery unit which is connected with the sewage treatment and circulation unit. Thedevice for sewage treatment and resource recovery provided by the invention can meet the demands of environmental protection, recovers resources, realizes cyclic utilization of the resources, reducesthe cost of production, and meets the needs of an enterprise for management and development.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to sewage treatment and reuse, carbon disulfide and sulfur recovery devices and methods thereof. Background technique [0002] Carbon disulfide is generally used as a solvent in the current production of viscose fiber, and some carbon disulfide and sodium hydroxide undergo a side reaction in the rubber making process to form sodium trithiocarbonate. In addition, viscose will also form filaments during spinning and coagulation. Sodium trithiocarbonate will react with sulfuric acid to generate hydrogen sulfide gas, which will be released again when it reacts with carbon disulfide combined with viscose fibers. [0003] At present, most enterprises adopt the molding process of alkaline sulfonation rubber making and acid coagulation, which will produce hydrogen sulfide and other gases during production. The hydrogen sulfide gas produced is a colorless, highly toxic and s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C01B32/72C01B17/04
CPCC01B17/0426C02F1/5236C02F1/72
Inventor 邵志辉
Owner JIANGSU HENGXIN ENERGY TECH
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