Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for treating waste water of antibiotic production

A technology for the production of waste water and treatment methods, applied in biological water/sewage treatment, multi-stage water treatment, water/sewage treatment, etc., can solve the problems of high operating cost, blockage, pollution, etc., and achieve low treatment cost, simple process, The effect of high processing efficiency

Active Publication Date: 2017-05-31
CHINA PETROLEUM & CHEM CORP +1
View PDF17 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] CN101654311A relates to a method for treating antibiotic wastewater using an upflow anaerobic sludge bed-aerobic membrane bioreactor (UASB-MBR) combined device. Improvement, but there are problems of membrane fouling and clogging, which makes the overall operating cost of the process higher

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for treating waste water of antibiotic production
  • Method for treating waste water of antibiotic production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] An antibiotic factory produces mixed wastewater produced by lincomycin, rifamycin, etc. The wastewater quality is: COD (Cr method, the same below) 15000mg / L, salt content 1.2wt%, suspended solids 5000mg / L, ammonia nitrogen 200mg / L, pH 7.5.

[0042] The waste water is treated by the method of the present invention. First, air is dissolved in water at 0.35MPa, and then the dissolved air is sent to the air flotation tank. The formed microbubbles bring some pollutants to the water surface and are removed. The concentration of suspended solids in the effluent Reduced to below 1500mg / L. The flotation water enters the ozone reactor. The ozone oxidant is provided by the ozone generator. The dosage of the ozone oxidant is 40mg / L wastewater, the ozone oxidant gas inlet concentration is 100mg / L, and the hydraulic retention time of the wastewater in the reactor is 30min. Ozone oxidation effluent BOD 5 / COD≥0.6. The oxidized effluent is coagulated and precipitated, the dosage of pol...

Embodiment 2

[0044] A certain antibiotic factory produces mixed wastewater produced by nalidixic acid. The wastewater quality is: COD (Cr method, the same below): 12000mg / L, salt content 1.5wt%, suspended solids 10000mg / L, ammonia nitrogen 200mg / L, pH 7.5 .

[0045] The waste water is treated by the method of the present invention. First, air is dissolved in water at 0.35MPa, and then the dissolved air is sent to the air flotation tank. The formed microbubbles bring some pollutants to the water surface and are removed. The concentration of suspended solids in the effluent Reduced to below 2000mg / L. The flotation water enters the ozone reactor. The ozone oxidant is provided by the ozone generator. The dosage of the ozone oxidant is 35mg / L wastewater, the ozone oxidant gas inlet concentration is 100mg / L, and the hydraulic retention time of the wastewater in the reactor is 30min. Ozone oxidation effluent BOD 5 / COD≥0.4. The oxidized effluent is coagulated and precipitated. The dosage of polyac...

Embodiment 3

[0047] An antibiotic factory produces mixed wastewater produced by lincomycin, rifamycin, etc. The wastewater quality is: COD (Cr method, the same below) 15000mg / L, salt content 1.2wt%, suspended solids 5000mg / L, ammonia nitrogen 200mg / L, pH 7.5.

[0048] The waste water is treated by the method of the present invention. First, air is dissolved in water at 0.35MPa, and then the dissolved air is sent to the air flotation tank. The formed microbubbles bring some pollutants to the water surface and are removed. The concentration of suspended solids in the effluent Reduced to below 1500mg / L. The flotation water enters the ozone reactor. The ozone oxidant is provided by the ozone generator. The dosage of the ozone oxidant is 40mg / L wastewater, the ozone oxidant gas inlet concentration is 100mg / L, and the hydraulic retention time of the wastewater in the reactor is 30min. Ozone oxidation effluent BOD 5 / COD≥0.4. The oxidized effluent is coagulated and precipitated, the dosage of pol...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for treating waste water of antibiotic production. The method comprises the following steps: (1) removing suspended materials from the waste water by adopting air flotation treatment; (2) treating the waste water by a high-grade oxidation technology to improve the biodegradability; (3) performing coagulating sedimentation on oxidation effluent and filtering to remove the generated precipitate; (4) performing anaerobic biochemical treatment on filtering effluent; (5) performing aerobic biochemical treatment on anaerobic effluent and adding salt-resistant COD-removing denitrifying microbial inoculums. According to the method, an air flotation-coagulating sedimentation-high-grade oxidation-anaerobic biochemical-aerobic biochemical combined treatment process is adopted, and the specific COD-removing denitrifying microbial inoculums are added in an aerobic unit, so the antibiotic in the waste water can be tolerated, the COD and the total nitrogen in the waste water can be removed efficiently, and the method has the characteristics of simple process, high treatment efficiency, low treatment cost and the like.

Description

Technical field [0001] The invention belongs to the technical field of wastewater treatment, and specifically relates to a treatment method of antibiotic production wastewater. Background technique [0002] Antibiotics are a great discovery in human history and have been widely used in many fields such as medical treatment, effectively protecting human health. However, in the production and application of antibiotics, a large amount of refractory organic wastewater containing antibiotics will be produced. The waste water that uses grain or molasses as the main raw material to produce antibiotics mainly comes from the high-concentration organic waste water of the separation, extraction, and purification process. COD and ammonia nitrogen are the main pollutants in the waste water. The waste water contains high salt content and a certain amount of Sulfate and contain a small amount of bio-inhibitory substances. Due to the complex water quality of antibiotic wastewater, it has a gr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C02F9/14
CPCC02F9/00C02F2305/026C02F2301/08C02F1/38C02F1/24C02F1/001C02F1/722C02F3/02C02F1/78C02F1/56C02F1/5236C02F3/1205C02F3/341C02F3/284C02F3/2846C02F3/28C02F3/1263C02F3/1268C02F2103/343Y02W10/10
Inventor 郭志华高会杰孙丹凤赵胜楠李宝忠
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com