Dilute sulfuric acid wastewater treatment system and method

A wastewater treatment system and dilute sulfuric acid technology, applied in water/sewage treatment, water treatment parameter control, heating water/sewage treatment, etc., can solve problems such as high operating costs, easy generation of wastewater, secondary pollution, etc., to ensure safety operation, avoid corrosion rate, low maintenance cost effect

Pending Publication Date: 2021-01-08
GUANGDONG WENYANG ENVIRONMENTAL TECH CO LTD
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Problems solved by technology

[0002] The treatment methods of waste sulfuric acid in traditional technology are mainly divided into three types: one is to directly discharge waste sulfuric acid and waste water into the surrounding environment, causing serious pollution; It is easy to produce secondary pollution, and the operating cost is too high; the third is to use the traditional ion exchange method, but it is easy to generate waste water during the regeneration process, and the operating cost is high, so it is difficult to promote and apply on a large scale
In the process of industrial wastewater production, the cost of treating these sulfuric acid waste liquids is high and the effect is poor

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  • Dilute sulfuric acid wastewater treatment system and method

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Embodiment Construction

[0043] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0044]Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of t...

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Abstract

The invention relates to a dilute sulfuric acid wastewater treatment system and a method. The dilute sulfuric acid wastewater treatment system comprises a preheating device, a pre-concentration device, an evaporation crystallizer, a condensation device and a vacuum device. Wherein the evaporation crystallizer comprises at least two heaters which work independently, so that the long-time stable operation of the system is ensured. The preheating device makes full use of heat energy generated in a dilute sulfuric acid wastewater treatment system, so that the operation energy consumption of the system is greatly reduced. Equipment for dilute sulfuric acid wastewater to pass through is made of zirconium and graphite, so that corrosion of acid waste liquid to system equipment is reduced. According to the dilute sulfuric acid wastewater treatment method, dilute sulfuric acid wastewater is concentrated at the temperature not higher than 70 DEG C, corrosion of sulfuric acid waste liquid to equipment at high temperature is avoided, and long-term stable operation is facilitated.

Description

technical field [0001] The invention relates to the field of wastewater treatment, in particular to a dilute sulfuric acid wastewater treatment system and treatment method. Background technique [0002] The treatment methods of waste sulfuric acid in traditional technology are mainly divided into three types: one is to directly discharge waste sulfuric acid and waste water into the surrounding environment, causing serious pollution; It is easy to produce secondary pollution, and the operating cost is too high; the third is to use the traditional ion exchange method, but waste water is easily generated during the regeneration process, and the operating cost is high, so it is difficult to promote and apply on a large scale. In the production process of industrial wastewater, the cost of treating these sulfuric acid waste liquids is high and the effect is poor. Contents of the invention [0003] Based on this, it is necessary to provide a dilute sulfuric acid wastewater trea...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/04C02F1/06
CPCC02F1/041C02F1/043C02F1/06C02F2209/005C02F2209/02C02F2301/046C02F2301/063C02F2303/14
Inventor 叶伟炳李琴
Owner GUANGDONG WENYANG ENVIRONMENTAL TECH CO LTD
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