CN1291591A - Treating agent for sewage in printing and dyeing industry and its preparing process - Google Patents
Treating agent for sewage in printing and dyeing industry and its preparing process Download PDFInfo
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- CN1291591A CN1291591A CN 99112475 CN99112475A CN1291591A CN 1291591 A CN1291591 A CN 1291591A CN 99112475 CN99112475 CN 99112475 CN 99112475 A CN99112475 A CN 99112475A CN 1291591 A CN1291591 A CN 1291591A
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- sewage
- treating agent
- dyeing industry
- dyeing
- printing
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Abstract
A treating agent dedicated for the sewage in printing and dyeing industry is prepared from calcium hydroxide and ferrous sulfate through proportioning, crushing, baking, adding coagulant and mixing. Its advantages include low cost, high effect, and less investment. The deposited slurry can be reclaimed.
Description
The invention belongs in the environment protection and to handle the needed preparation of the three wastes, particularly be to be exclusively used in dyeing industry sewage special treating agent and the production method thereof that purifies waste water that dyeing is discharged.
Current, the pollution that the sewage that printing and dyeing mill discharges is serious environment, and dyeing and printing sewage difficult treatment.For example, Jinan two factories that print and dye invest more than 140 ten thousand yuan and have built a sewage works, and design day is disposed of sewage 7200 tons, utilize biological, chemical two-stage to handle, and still, per hour power consumption is 240 kilowatts, accounts for full power supply for station 20%; And will could live with the big screw blower fan oxygenation biology of noise, the dyeing and printing sewage change of water quality is big, and biology is difficult to survive, and just stops using in one month so only go into operation.
It is simple to the purpose of this invention is to provide a kind of prescription, makes easily production application less investment, water saving, economize on electricity, the place's agent of dyeing industry sewage dedicated processes and the production method thereof of high efficiency.
The object of the present invention is achieved like this, specifies as follows:
A kind of dyeing industry sewage special treating agent, its characteristics are: contain in its prescription that hydroxide is relaxed, ferrous sulfate, coagulant aids.
Above-mentioned dyeing industry sewage special treating agent, its characteristics are that portfolio ratio is in its prescription: calcium hydroxide: ferrous sulfate: coagulant aids=0.3-2: 0.5-9: 0.2-0.6.
The production method of above-mentioned dyeing industry sewage special treating agent is: according to formula rate, carry out drying treatment after calcium hydroxide, ferrous sulfate weighed up, pulverize, weigh up coagulant aids by proportioning again, adding is stirred and is promptly obtained dyeing industry sewage-treating agent of the present invention as batching.
In use can three kinds of material gradation be dropped into the effect that also can play sewage purification in the sewage by formula rate.
Formula rate embodiment of the present invention is as follows:
Example 1. calcium hydroxides: ferrous sulfate: coagulant aids=0.5: 0.8: 0.3.
Example 2. calcium hydroxides: ferrous sulfate: coagulant aids=1: 2: 0.4.
Example 3. calcium hydroxides: ferrous sulfate: coagulant aids=1.2: 4: 0.5.
Example 4. calcium hydroxides: ferrous sulfate: coagulant aids=1.6: 6: 0.5.
Example 5. calcium hydroxides: ferrous sulfate: coagulant aids=2: 8: 0.6.
The embodiment of above-mentioned dyeing and printing sewage dedicated processes agent and process for producing same is as follows:
Be as the criterion with the foregoing description 3, at first weigh up 1.2 kilograms in calcium hydroxide, 4 kilograms of Iron sulfurets, carry out drying treatment by proportioning, then, add 0.5 kilogram of coagulant aids such as polyacrylamide again, remix is even, promptly obtains dyeing industry sewage special treating agent of the present invention.
Advantage of the present invention is a lot, and topmost have three, and the one, to invest for a short time, the change expense is few, without main equipment; Two factories that print and dye through the Jinan City use, the daily output dyeing waste water 4000-5000 of this factory ton, as long as used treatment agent is more than 500 yuan, the recovery of water simultaneously reaches more than 90%, promptly recyclable 3500-4500 ton water, and annual water saving takes more than 100 ten thousand yuan, if count at least 20 ten thousand yuan of annual fee of sewage discharge in, about 1,500,000 yuan of Spring Festival holidays water rate, annual economize on electricity 1,500,000 degree, about 1,000,000 yuan.Mainly starch-containing in the mud, can utilize sedimentary mud to extract Starch Production alcohol, benefit will be higher.The 2nd, speed is fast, and sewage is watched the black liquor precipitation after the dispensing, and it is clear that sewage becomes, and the transparent liquid that becomes colorless makes the onlooker surprised; The 3rd, dyeing industry sewage special treating agent production cost is low, practical less investment, water saving, economize on electricity, and water rate of recovery height can allow enterprise become water, the large electricity consumer is water saving, economize on electricity model very soon, and reality is a kind of comparatively ideal dyeing and printing sewage treatment agent.
Dyeing industry sewage special treating agent of the present invention, second printing and dyeing mill uses in the Jinan City, manufacturer goes out it was reported: " scavenging agent (is annotated: treatment agent promptly of the present invention); drop in the dyeing waste water by the dispensing standard; promptly reach reuse standard through thorough mixing, produce not 500 yuan of dyeing waste water 4000-5000 ton needs medicines, about 0.1 yuan of one ton of sewage of every processing at present daily according to our factory; not more than 100 ten thousand yuan of year conserve water, also economized and hand over not more than 50 ten thousand yuan of blowdowns for No. 3.Annual economize on electricity 1,500,000 degree are cut down expenses more than 100 ten thousand yuan again ".Sedimentary mud after tested, calorific value is near timber, it is very promising to be used; Shandong Province's environmental health monitoring station detected result: dyeing and printing sewage suspended substance (following unit mg/litre) 850.20 before the test, test back suspended substance only is 2.0; COD823.51 before the test is 72.10 after the test; BOD421.69 before the test, 56.30 colourities test in test back is preceding 591.10, after the test 3.00.
By the application of above-mentioned producer and the detection of test organization, dyeing industry sewage special treating agent of the present invention is sure.
Claims (3)
1, a kind of dyeing industry sewage special treating agent, its characteristics are: contain in its prescription that hydroxide is relaxed, ferrous sulfate, coagulant aids.
2. dyeing industry sewage special treating agent according to claim 1, its characteristics are: portfolio ratio is in its prescription: hydroxide calcification calcium: ferrous sulfate: coagulant aids=0.3-2: 0.5-9: 0.2-0.6.
3. the using method of a dyeing industry sewage special treating agent is characterized in that: according to the proportional quantity in the prescription related substance is put in the seal industry sewage and purified waste water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99112475 CN1291591A (en) | 1999-10-11 | 1999-10-11 | Treating agent for sewage in printing and dyeing industry and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99112475 CN1291591A (en) | 1999-10-11 | 1999-10-11 | Treating agent for sewage in printing and dyeing industry and its preparing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1291591A true CN1291591A (en) | 2001-04-18 |
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ID=5275778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99112475 Pending CN1291591A (en) | 1999-10-11 | 1999-10-11 | Treating agent for sewage in printing and dyeing industry and its preparing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1291591A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708593A (en) * | 2013-12-26 | 2014-04-09 | 张�成 | Dyeing wastewater treatment agent and preparation method thereof |
| CN108314167A (en) * | 2018-04-08 | 2018-07-24 | 南宁市夏阳化工科技有限责任公司 | One kind is except compound alkali of spent acid and preparation method thereof |
| CN108423720A (en) * | 2018-04-08 | 2018-08-21 | 南宁市夏阳化工科技有限责任公司 | A kind of the compounding pulverized limestone and its preparation method of treated sewage |
-
1999
- 1999-10-11 CN CN 99112475 patent/CN1291591A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708593A (en) * | 2013-12-26 | 2014-04-09 | 张�成 | Dyeing wastewater treatment agent and preparation method thereof |
| CN103708593B (en) * | 2013-12-26 | 2015-08-26 | 邯郸学院 | A kind of dyeing and printing sewage treatment agent and preparation method thereof |
| CN108314167A (en) * | 2018-04-08 | 2018-07-24 | 南宁市夏阳化工科技有限责任公司 | One kind is except compound alkali of spent acid and preparation method thereof |
| CN108423720A (en) * | 2018-04-08 | 2018-08-21 | 南宁市夏阳化工科技有限责任公司 | A kind of the compounding pulverized limestone and its preparation method of treated sewage |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |