首页> 外国专利> WASTEWATER TREATMENT METHOD AND DEVICE USING IRON SULFATE SOLUTION DERIVED FROM INDUSTRIAL BY-PRODUCTS, WHEREIN IRON CONTENT AND ACIDITY ARE REGULATED BY ADDING FERROUS CHLORIDE SOLUTION, FERRIC CHLORIDE SOLUTION, FERROUS SULFATE SOLUTION, OR FERRIC SULFATE SOLUTION

WASTEWATER TREATMENT METHOD AND DEVICE USING IRON SULFATE SOLUTION DERIVED FROM INDUSTRIAL BY-PRODUCTS, WHEREIN IRON CONTENT AND ACIDITY ARE REGULATED BY ADDING FERROUS CHLORIDE SOLUTION, FERRIC CHLORIDE SOLUTION, FERROUS SULFATE SOLUTION, OR FERRIC SULFATE SOLUTION

机译：使用工业副产品中的硫酸铁溶液进行废水处理的方法和设备，其中铁的含量和酸度应通过添加氯化铁溶液，氯化铁溶液，硫酸亚铁溶液或硫酸铁溶液来调节

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摘要

The present invention relates to an iron sulfate solution derived from industrial by-products, that is, an iron sulfate solution for wastewater treatment, comprising: 10-30 wt% of sulfuric acid (H_2SO_4), 3-6 wt% of iron sulfate (FeSO_4), and the remainder water with respect to the entire weight of the solution. The present invention also relates to a wastewater treatment method using an iron sulfate solution derived from industrial by-products, comprising: a step a) of adding an iron sulfate solution derived from industrial by-products into wastewater and then, adjusting pH to 4-5; a step b) of adding to the wastewater one or more kinds of inorganic coagulant selected from a group composed of a ferrous chloride solution, a ferric chloride solution, a ferrous sulfate solution, or a ferric sulfate solution; a step c) of adding hydrogen peroxide (H_2O_2) as an oxidant into the wastewater and then, conducting oxidation reaction for 30-60 minutes; a step d) of adding an alkaline chemical into the wastewater and then, adjusting pH to 6-8; and a step e) of injecting an organic polymer coagulant into the wastewater in order to separate solids from liquids. Therefore, the wastewater treatment method using an iron sulfate solution derived from industrial by-products can remove water contamination and significantly improve economic feasibility of a process thereof at the same time.;COPYRIGHT KIPO 2020

机译：本发明涉及衍生自工业副产物的硫酸铁溶液，即用于废水处理的硫酸铁溶液，其包含：10-30重量％的硫酸（H_2SO_4），3-6重量％的硫酸铁（H_2SO_4）。 FeSO_4），其余为相对于溶液总重量的水。本发明还涉及一种使用源自工业副产物的硫酸铁溶液的废水处理方法，其包括：步骤a）将源自工业副产物的硫酸铁溶液添加至废水中，然后将pH调节至4- 5;步骤b）向废水中添加一种或多种选自由氯化亚铁溶液，氯化铁溶液，硫酸亚铁溶液或硫酸铁溶液组成的组的无机凝结剂;步骤c）向废水中加入过氧化氢（H_2O_2）作为氧化剂，然后进行氧化反应30-60分钟;步骤d）向废水中加入碱性化学品，然后调节pH值至6-8。步骤e），将有机聚合物凝结剂注入废水中，以从液体中分离出固体。因此，使用源自工业副产品的硫酸铁溶液的废水处理方法可以消除水污染并同时显着提高其工艺的经济可行性。; COPYRIGHT KIPO 2020

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公开/公告号KR20190143095A

专利类型
公开/公告日2019-12-30

原文格式PDF
申请/专利权人 SHIN GUEN SIG;
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申请/专利号KR20180070628
发明设计人 SHIN GUEN SIGKR;
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申请日2018-06-20
分类号C02F1/66;C02F1/52;
国家 KR
入库时间 2022-08-21 11:08:31

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