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Integrated treatment process for clindamycin hydrochloride production wastewater

A technology for clindamycin hydrochloride and production wastewater, which is applied in water/sewage treatment, natural water treatment, special compound water treatment, etc. It can solve the problems of inability to meet treatment requirements, clean water, high power consumption, and high operating costs. The effect of reducing the amount of landfill, stable operation and rational utilization of resources

Active Publication Date: 2017-01-25
河南君和环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The removal rate of biological treatment is high, the operating cost is low, and it is stable. However, since the industrial wastewater of synthetic antibiotics is high-salt and high-concentration organic wastewater, direct biological treatment needs to dilute the original waste liquid by ten times or even a hundred times, and the consumption of clean water and power is very high. Large, resulting in high operating costs, unable to meet the increasingly stringent processing requirements

Method used

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  • Integrated treatment process for clindamycin hydrochloride production wastewater
  • Integrated treatment process for clindamycin hydrochloride production wastewater
  • Integrated treatment process for clindamycin hydrochloride production wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In view of the water quality characteristics of clindamycin hydrochloride wastewater, the integrated treatment method of the present invention can be used to achieve the stable operation of each treatment unit, the discharge of effluent up to the standard, and the treatment goals of economical efficiency. The specific treatment method steps are as follows:

[0033] (1) The mixed collection of clindamycin hydrochloride production wastewater and other cleaning wastewater is directly pumped to the sewage treatment system. The sewage treatment system first performs three-effect evaporation and concentration on the sewage, and then centrifuges to separate the salt-containing organic matter;

[0034] (2) In the salt refining workshop, after the crude salt is completely dissolved, the steam pressure is controlled to 0.18-0.22Mpa, the temperature in the kettle is 70-80°C, and the concentration is started. In the later stage of concentration, the density is checked every 30 minute...

Embodiment 2

[0038] The specific processing steps are as follows:

[0039] (1) The mixed collection of clindamycin hydrochloride production wastewater and other cleaning wastewater is directly pumped to the sewage treatment system. The sewage treatment system first performs three-effect evaporation and concentration on the sewage, and then centrifuges to separate the salt-containing organic matter;

[0040] (2) In the salt refining workshop, after the crude salt is completely dissolved, the steam pressure is controlled to 0.18-0.22Mpa, the temperature in the kettle is 70-80°C, and the concentration is started. In the later stage of concentration, the density is checked every 30 minutes. When the density ρ=1.38-1.40 , start centrifugation to obtain low-purity chlorine salt; after the low-purity chlorine salt is completely dissolved, control the steam pressure to 0.18-0.22Mpa, the temperature in the kettle is 70-80°C, and start to concentrate. In the later stage of concentration, check the de...

Embodiment 3

[0044] The specific processing steps are as follows:

[0045] (1) The mixed collection of clindamycin hydrochloride production wastewater and other cleaning wastewater is directly pumped to the sewage treatment system. The sewage treatment system first performs three-effect evaporation and concentration on the sewage, and then centrifuges to separate the salt-containing organic matter;

[0046] (2) In the salt refining workshop, after the crude salt is completely dissolved, the steam pressure is controlled to 0.18-0.22Mpa, the temperature in the kettle is 70-80°C, and the concentration is started. In the later stage of concentration, the density is checked every 30 minutes. When the density ρ=1.38-1.40 , start centrifugation to obtain low-purity chlorine salt; after the low-purity chlorine salt is completely dissolved, control the steam pressure to 0.18-0.22Mpa, the temperature in the kettle is 70-80°C, and start to concentrate. In the later stage of concentration, check the de...

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Abstract

The invention discloses an integrated treatment process for clindamycin hydrochloride production wastewater. The process comprises the following steps: performing triple-effect evaporation and concentration on the clindamycin hydrochloride production wastewater, performing centrifugal separation, feeding coarse salts produced by centrifugal separation into a salt refining workshop, collecting the mother solution to be used for extracting phosphate, and repeatedly performing dissolution, evaporation and centrifugal separation on the coarse salts in the salt refining workshop, thereby obtaining high-purity chlorine salts; washing by ethanol, thereby obtaining the finished chlorine salts; collecting the produced mother solution to be used for extracting phosphate; performing evaporation and concentration on the phosphate mother solution, centrifuging and washing, thereby obtaining the phosphate; rectifying the scrubbing solution, recycling the methanol, feeding the distillation residues into a hazardous waste treatment center, merging the foul condensate produced by multiple-effect evaporation and crystallization mother liquor produced by centrifugal separation, homogenizing, and performing anaerobic and aerobic biological treatment and advanced treatment. The method provided by the invention is an integrated method for combining multiple-effect evaporation, methanol rectification and biological treatment and has the characteristics of reasonable resource utilization, low cost, simplicity and convenience in operation, stable operation and the like.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to an integrated treatment process for clindamycin hydrochloride production wastewater. Background technique [0002] Clindamycin hydrochloride (clindamycin) is also called clindamycin. The production wastewater mainly includes the mother liquor formed in the synthesis process, equipment washing water, etc., and mainly contains some raw materials and intermediate products in the production process, such as glycerin, acetone, Ethanol, ammonia water, phosphorus oxychloride, ethylene dichloride, pyridine, DMF, tetracycline, lindamycin and the remaining part of clindamycin hydrochloride, the content of organic matter is very high, the COD is as high as 70000-80000 mg / L, and the salt content is as high as 15 %, which is a typical refractory high-concentration organic industrial wastewater. [0003] According to the research data at home and abroad, the treatment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/34
CPCC02F1/04C02F1/048C02F1/38C02F1/722C02F3/28C02F3/30C02F9/00C02F2103/343C02F2305/026Y02E50/30
Inventor 代吉华张文龙张珅史明王海娟娄威唐启牛波波王文涛
Owner 河南君和环保科技有限公司
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