CN104692473A - Sewage treatment agent prepared by using steel pickling waste liquid - Google Patents
Sewage treatment agent prepared by using steel pickling waste liquid Download PDFInfo
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- CN104692473A CN104692473A CN201310670206.0A CN201310670206A CN104692473A CN 104692473 A CN104692473 A CN 104692473A CN 201310670206 A CN201310670206 A CN 201310670206A CN 104692473 A CN104692473 A CN 104692473A
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Abstract
The invention belongs to a sewage treatment agent. The sewage treatment agent is prepared from the following components in parts by mass: 30-90 parts of steel tube pickling waste liquid iron sulfate, 30-90 parts of industrial sulfuric acid, 40-100 parts of an oxidizing agent sodium dichromate and 40-120 parts of a catalyst manganese dioxide.
Description
Technical field
The invention belongs to a kind of sewage-treating agent, is a kind of high molecular weight water soluble polymer, belongs to petrochemical complex class technical field.
Background technology
Along with the attention to environmental protection, each enterprise all strengthens recycling to pollutent and comprehensive utilization.At present, simple passive treatment process is adopted mostly, as lime slurry neutralization method to the process of iron and steel pickling waste liquid.And freeze crystallization or evaporating, concentrating and crystallizing method, due to large by facility investment, the factor restrictions such as complex process, it is less that reality uses.Pipe mill of Xinyu Iron & Steel Co., Ltd. all recycles producing a large amount of spent pickle liquors of discharging, on the basis of document, spent pickle liquor is utilized to manufacture sewage-treating agent--bodied ferric sulfate, and set up spent acid treatment plant, through practice in recent years, not only turn waste into wealth, administered pollution, also create certain economic benefit.Current annual output bodied ferric sulfate about 10000t, this product is mainly used in Xin Gang company steelwork converter Sewage treatment systems, and from service condition, wastewater treatment efficiency is good.
The most important thing of city domestic sewage in 2013 discharge to be the primary pollution source city domestic sewage process of Chinese city water be urban water conservation at present and in the future and treatment work; this just requires that we will grab the construction of process sanitary sewage facility as the important content of urban infrastructure, and is too impatient to wait thing.
Along with the development of science and technology, the direct utilization of sewage becomes possibility, uses sewage source heat pump system to utilize urban original wastewater.
So-called native sewage water directly discharges undressed life or trade effluent with regard to city, the Application way of present stage is that native sewage water directly enters sewage source heat pump system and carries out heat exchange, is the indoor refrigeration and heatings of City Building when consume low amounts of power.Reutilization of the sewage has several technological difficulties to need to overcome: blocking, corrosion, heat exchange efficiency.
Sewage source heat pump system has sewage heat exchanger and sewage source heat pump two portions to form.Urban original wastewater directly enters after sewage heat exchanger carries out heat exchange, and the heat exchanged for is done work by the heat pump of sewage source heat pump inside and is delivered to indoor.
Summary of the invention
For avoiding the acid pollution of pickle solution, the product calcium hydroxide that traditional method generally adopts lime, carbide slag or lime slaking to react neutralizes, although pH value can reach requirement after neutralization, but all the other indices are difficult to up to standard, and the body refuse of generation dewaters difficulty, not easily drying, post-processing difficulty greatly, most of situation is that accumulation is pending, occupies a large amount of soil, cause secondary pollution, the method wastes a large amount of acid and iron resources simultaneously.
In order to protection of the environment, save and make rational use of resources, Chinese scholars has carried out large quantifier elimination and exploration for a long time, proposes dissimilar process and recovery method and technology, achieves good effect.
The proportion by weight scope of this product is: acid cleaning of steel tube waste liquid ferric sulfate 30-90, industrial sulphuric acid 30-90, and oxygenant is sodium dichromate 99 40-100, and catalyzer is Manganse Dioxide 40-120.
Embodiment
By spent pickle liquor pump suction heating tank, add iron filings and industrial sulphuric acid simultaneously, calculate according to the acidity of spent acid and the concentration of ferrous iron and determine; React some hours after being warming up to 40-50 DEG C, control acidity (pH value is less than 3) in solution, adjustment solution mol ratio 1.30-1.35, filter, middle product solution is put into reactive tank, logical pressurized air, and add appropriate catalyzer, to improve the transformation efficiency of ferric ion, temperature is controlled at about 70 DEG C, reaction 3-5h, then cools the temperature to about 40 DEG C, adds oxygenant, logical pressurized air, continue reaction 6-12h, react complete, sampling inspection product.
Claims (2)
1. the proportion by weight scope of this product is: acid cleaning of steel tube waste liquid ferric sulfate 30-90, industrial sulphuric acid 30-90, and oxygenant is sodium dichromate 99 40-100, and catalyzer is Manganse Dioxide 40-120.
2. by spent pickle liquor pump suction heating tank, add iron filings and industrial sulphuric acid simultaneously, calculate according to the acidity of spent acid and the concentration of ferrous iron and determine; React some hours after being warming up to 40-50 DEG C, control acidity (pH value is less than 3) in solution, adjustment solution mol ratio 1.30-1.35, filter, middle product solution is put into reactive tank, logical pressurized air, and add appropriate catalyzer, to improve the transformation efficiency of ferric ion, temperature is controlled at about 70 DEG C, reaction 3-5h, then cools the temperature to about 40 DEG C, adds oxygenant, logical pressurized air, continue reaction 6-12h, react complete, sampling inspection product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310670206.0A CN104692473A (en) | 2013-12-07 | 2013-12-07 | Sewage treatment agent prepared by using steel pickling waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310670206.0A CN104692473A (en) | 2013-12-07 | 2013-12-07 | Sewage treatment agent prepared by using steel pickling waste liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104692473A true CN104692473A (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310670206.0A Pending CN104692473A (en) | 2013-12-07 | 2013-12-07 | Sewage treatment agent prepared by using steel pickling waste liquid |
Country Status (1)
| Country | Link |
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| CN (1) | CN104692473A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106241890A (en) * | 2016-08-25 | 2016-12-21 | 常州清流环保科技有限公司 | A kind of production method of bodied ferric sulfate |
| CN106865784A (en) * | 2017-03-16 | 2017-06-20 | 王冰 | A kind of wastewater treatment material of smelting iron and steel and preparation method thereof |
| CN108911094A (en) * | 2018-07-12 | 2018-11-30 | 宝武集团环境资源科技有限公司 | A kind of preparation method of iron series composite water purifying agent |
-
2013
- 2013-12-07 CN CN201310670206.0A patent/CN104692473A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106241890A (en) * | 2016-08-25 | 2016-12-21 | 常州清流环保科技有限公司 | A kind of production method of bodied ferric sulfate |
| CN106865784A (en) * | 2017-03-16 | 2017-06-20 | 王冰 | A kind of wastewater treatment material of smelting iron and steel and preparation method thereof |
| CN108911094A (en) * | 2018-07-12 | 2018-11-30 | 宝武集团环境资源科技有限公司 | A kind of preparation method of iron series composite water purifying agent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |