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Waste liquid treatment method for CMC or sodium sarcosinate or laundry detergent

A technology for waste liquid treatment and sodium creatine ammonia, which is applied in chemical instruments and methods, biological water/sewage treatment, heating water/sewage treatment, etc. Lifting, scale-free, well-designed results

Inactive Publication Date: 2018-11-23
JIANGSU TAILIDA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Patent CN201610346447.3, CMC wastewater treatment method, although the regenerated water produced by it has reached the industrial water standard, and it will generate a lot of scale during use, causing problems such as water pipe blockage, which brings troubles for later cleaning treatment

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  • Waste liquid treatment method for CMC or sodium sarcosinate or laundry detergent
  • Waste liquid treatment method for CMC or sodium sarcosinate or laundry detergent

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Embodiment Construction

[0028] Such as Figure 1-2 As shown, a waste liquid treatment method of CMC or sodium creatine ammonia or laundry detergent, the waste liquid is saline waste water, and the saline waste water is evaporated by MVR to remove 80% of inorganic salts, and the rest is salty 10-15 %, water 40-50% and organic matter 35-50% solution, the chemical oxygen demand COD of this solution is as high as 300,000 mg / L or more, referred to as the mother liquor; the mother liquor is prepared into the chemical oxygen demand COD1 in the distribution tank 1 10,000-14,000 mg / L solution, and then the prepared wastewater is pumped into UASB pool 2 through pump 10 for treatment, and then flows into facultative oxygen pool 3, PACT pool 4, middle sedimentation pool 5, hydrolytic acidification in sequence through overflow Pool 6, contact oxidation tank 7 and secondary settling tank 8 are processed, and after the treatment is completed, detection and discharge are carried out; the middle settling tank 5 inclu...

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Abstract

The invention relates to a waste liquid treatment method for CMC or sodium sarcosinate or laundry detergent, the waste liquid is brine waste, the brine waste is evaporated through MVR, 80% of inorganic salt is removed, a solution containing 10% to 15% of salt, 40% to 50% of moisture and 35 to 50% of organic matter is left, the COD (chemical oxygen demand) of the solution which is called as mothersolution for short reaches 0.3 million mg / L, the mother solution is prepared into a solution of which the COD (chemical oxygen demand) is 0.01 million to 0.14 million mg / L in a solution preparation tank, then the prepared waste solution is pumped into USAB tank for treatment, and the waste solution sequentially flows into an anoxic tank, a PACT tank, an intermediate settling tank, a hydrolysis acidification tank, a contact oxidation tank and a secondary settling tank in an overflow way for treatment, detection and discharging is performed after the treatment is finished. The waste liquid treatment method provided by the invention has the advantages that the design is perfect, the convenience in use is realized, the salt in the waste liquid is effectively removed and a number of recycled water up to industrial reuse standards is produced after the treatment, the water quality is further improved by using twice settling through the intermediate settling tank and the secondary settling tank, and no incrustation is produced during use.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to a waste liquid treatment method of CMC, creatine sodium or laundry detergent. Background technique [0002] The main pollutant produced by the production of CMC or sodium creatine or laundry detergent is wastewater, which is characterized by high salt and high COD (20000-40000mg / L). For every ton of CMC or creatine sodium or laundry detergent produced, about 2.5 to 3 tons of waste liquid will be produced. Wastewater treatment has always been an important issue worldwide, especially in developed countries. For example, Japan adopts the hydrogen peroxide treatment process, and Germany adopts the resin exchange method, but they still have their own shortcomings and fail to achieve zero discharge of surface water. my country has not yet seen mature technology patents in this regard, and there is still a widening gap compared with developed countries. It is very important to sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/34C02F101/38
CPCC02F1/04C02F1/52C02F3/00C02F3/30C02F3/342C02F9/00C02F2101/34C02F2101/38
Inventor 徐赟王一平
Owner JIANGSU TAILIDA NEW MATERIAL CO LTD
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