CN104671604B - A kind of Ramie-refining Wastewater Treatment - Google Patents
A kind of Ramie-refining Wastewater Treatment Download PDFInfo
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- CN104671604B CN104671604B CN201510055878.XA CN201510055878A CN104671604B CN 104671604 B CN104671604 B CN 104671604B CN 201510055878 A CN201510055878 A CN 201510055878A CN 104671604 B CN104671604 B CN 104671604B
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Abstract
The invention discloses a kind of Ramie-refining Wastewater Treatment, comprise the following steps: the kiering waste water that (1) will discharge during China grass degumming, after intercepting grid and filtering foreign material and long fibre, come together in regulating reservoir with pre-acid waste water and pickling waste waters again；(2) neutralize in reaction tank and reduce pH value of waste water to 89；(3) hydrolysis acidification pool reaction；(4) anaerobic pond reaction；(5) anoxic pond reaction；(6) amphimicrobian pond and comprehensive adjustment pond regulating water quality；(7) comprehensive flocculation sedimentation tank precipitation；(8) comprehensive hydrolysis acidification pool reaction；(9) comprehensive Aerobic Pond reaction.The CODcr 100mg/L, BOD of waste water after this process PROCESS FOR TREATMENT520mg/L, SS 50mg/L, ammonia-nitrogen content 15mg/L, pH value is 67, and colourity is 50 times.
Description
Technical field
The invention belongs to field of waste water treatment, be specifically related to a kind of Ramie-refining Wastewater Treatment.
Background technology
The waste water that China grass degumming process produces mainly has: kiering waste water, beats and washes waste water, pre-sour waste water, pickling waste waters, flushing waste water, poaching wastewater.Containing colloidal substances such as pectin, hemicellulose, lignins in kiering waste water, causing kiering waste water color to be black possibly together with substantial amounts of alkaline matter, CODcr value is higher, about 11000-14000mg/L, and pH value is 12-14, in strong basicity；Containing sulphuric acid in pre-acid waste water, pickling waste waters, in acidity；Flushing waste water contains the impurity such as acidic materials, alkaline matter, colloidal particles；Poaching wastewater mainly containing sodium hypochlorite, has the biggest penetrating odor, has the biggest harm to human body.The process technique of ramie-degumming waste water in prior art, treatment effect is bad, and the discharge water after process does not reaches the first discharge standard of national regulation.
Summary of the invention
A kind of Ramie-refining Wastewater Treatment that the present invention is directed to above-mentioned weak point and provide, this process is simple for process, it is simple to operation, and the discharge water after process is fully achieved the first discharge standard of national regulation.
For achieving the above object, the technical solution adopted for the present invention to solve the technical problems is:
A kind of Ramie-refining Wastewater Treatment, comprises the following steps:
(1) the kiering waste water will discharged during China grass degumming, comes together in regulating reservoir after intercepting grid and filtering foreign material and long fibre, and the most pre-acid waste water and pickling waste waters are also into regulating reservoir；
(2) regulating reservoir water outlet enters and neutralizes reaction tank, reduction pH value of waste water to 8-9；
(3) neutralize reaction tank water outlet and enter hydrolysis acidification pool, by the complicated Organic substance in the metabolic activity degradation water of hydrolysed ferment antibacterial；
(4) hydrolysis acidification pool water outlet enters anaerobic pond, and in anaerobic pond, temperature is 30-35 DEG C, and pH value is 6.5-8, by the Organic substance in methanogen degrading waste water；
(5) anaerobic pond water outlet enters anoxic pond, and in anoxic pond, dissolved oxygen is less than or equal to 0.2mg/L, by the Organic substance in denitrifying bacteria degrading waste water, denitrogenation；
(6) anoxic pond water outlet enters amphimicrobian pond, in amphimicrobian pond, dissolved oxygen is 0.3-0.5mg/L, enter comprehensive adjustment pond together with the flushing water processed with air-floating apparatus after denitrifying bacteria and nitrobacteria denitrogenation and washings, remove long fibre and foreign material further；
(7) water outlet of comprehensive adjustment pond enters comprehensive flocculation sedimentation tank, adds PAC and PAM, PAC and PAM addition and the ratio entering comprehensive flocculation sedimentation tank waste water weight is 1:8 × 10 respectively in comprehensive flocculation sedimentation tank3-10×103, 1:4 × 105-6×105；
(8) comprehensive flocculation sedimentation tank water outlet enters comprehensive hydrolysis acidification pool, by the Organic substance being difficult to degrade in hydrolysed ferment bacterial degradation waste water；
(9) comprehensive hydrolysis acidification pool water outlet enters comprehensive Aerobic Pond, and in comprehensive Aerobic Pond, dissolved oxygen is 2.5-3mg/L, utilizes the Organic substance in nitrobacteria degrading waste water.
A kind of Ramie-refining Wastewater Treatment that the present invention provides, has the advantages that
(1) neutralization reaction, hydrolysis acidification, flocculation sediment, biological respinse are effectively combined ramie-degumming waste water is processed, the CODcr 100mg/L, BOD of processed waste water520mg/L, SS 50mg/L, ammonia-nitrogen content 15mg/L, pH value is 6-7, and colourity is 50 times.
(2) processing procedure is simple, low cost.
Detailed description of the invention
Embodiment
A kind of Ramie-refining Wastewater Treatment, comprises the following steps:
(1) the kiering waste water will discharged during China grass degumming, comes together in regulating reservoir after intercepting grid and filtering foreign material and long fibre, and the most pre-acid waste water and pickling waste waters are also into regulating reservoir；
(2) water outlet of regulating reservoir enters and neutralizes reaction tank, kiering waste water owing to discharging during China grass degumming is alkalescence, in order to ensure the growing environment of microorganism in follow-up antimicrobial treatment process, kiering waste water need to be entered together with pickling waste waters neutralization reaction tank, reduction pH value of waste water to 8-9；
(3) neutralize reaction tank water outlet and enter hydrolysis acidification pool, by the metabolic activity of hydrolysed ferment antibacterial, macromole, hard-degraded substance are converted into the material of little molecule, easily biological-degradable；
(4) hydrolysis acidification pool water outlet enters anaerobic pond, and in anaerobic pond, temperature is 30-35 DEG C, and pH value is 6.5-8, and the Organic substance in waste water is degraded after contacting with the methanogen on biomembrane, is degraded to CH4And CO2, the CODcr value in waste water is reduced to 5800-6000mg/L by initial 15000mg/L；
(5) anaerobic pond water outlet enters anoxic pond, and in anoxic pond, dissolved oxygen is less than or equal to 0.2mg/L, and by the Organic substance in denitrifying bacteria degrading waste water, denitrogenation, the CODcr value in waste water is reduced to 2000-2200mg/L；
(6) anoxic pond water outlet enters amphimicrobian pond, in amphimicrobian pond, dissolved oxygen is 0.3-0.5mg/L, comprehensive adjustment pond is entered together with the flushing water processed with air-floating apparatus after denitrifying bacteria and nitrobacteria denitrogenation and washings, remove long fibre and foreign material further, can also buffer the organic loading in waste water, the CODcr value in waste water is reduced to 800-1000mg/L simultaneously；
(7) water outlet of comprehensive adjustment pond enters comprehensive flocculation sedimentation tank, adds PAC and PAM, PAC and PAM addition with the ratio entering comprehensive flocculation sedimentation tank waste water weight respectively: 1:8 × 10 in comprehensive flocculation sedimentation tank3-10×103, 1:4 × 105-6×105；
(8) comprehensive flocculation sedimentation tank water outlet enters comprehensive hydrolysis acidification pool, the insoluble Organic substance of many in waste water is hydrolyzed zymogenous bacteria and is degraded to solable matter, macromole, hard-degraded substance are converted into the material of little molecule, easily biological-degradable, and the CODcr value in waste water is reduced to 350mg/L；
(9) comprehensive hydrolysis acidification pool water outlet enters comprehensive Aerobic Pond, aerator is utilized to make dissolved oxygen in comprehensive Aerobic Pond maintain 2.5-3mg/L, utilize biological contact oxidation process that waste water is processed, nitrobacteria degradable on biomembrane gives up Organic substance in water, to reach the purpose of nitrification, this process should ensure that pond Middle nutrition material is sufficient, when nutrient substance deficiency, supplementary carbon source, nitrogen source, phosphorus, the amount of three's material is than for 100:5:1.
In ramie-degumming waste water processing procedure, observe the character of mud at any time, make sludge settling volume SV30Maintaining 15%-30%, process terminates the CODcr 100mg/L, BOD of rear waste water520mg/L, SS 50mg/L, ammonia-nitrogen content 15mg/L, pH value is 6-7, and colourity is 50 times；Wherein colourity uses extension rate method to measure, will sample optics pure water extension rate when being diluted to no color differnece compared with optical voidness water, unit be again.
Claims (1)
1. a Ramie-refining Wastewater Treatment, it is characterised in that comprise the following steps:
(1) the kiering waste water will discharged during China grass degumming, comes together in regulating reservoir after intercepting grid and filtering foreign material and long fibre, and the most pre-acid waste water and pickling waste waters are also into regulating reservoir；
(2) regulating reservoir water outlet enters and neutralizes reaction tank, reduction pH value of waste water to 8-9；
(3) neutralize reaction tank water outlet and enter hydrolysis acidification pool, by the complicated Organic substance in the metabolic activity degradation water of hydrolysed ferment antibacterial；
(4) hydrolysis acidification pool water outlet enters anaerobic pond, and in anaerobic pond, temperature is 30-35 DEG C, and pH value is 6.5-8, by the Organic substance in methanogen degrading waste water；
(5) anaerobic pond water outlet enters anoxic pond, and in anoxic pond, dissolved oxygen is less than or equal to 0.2mg/L, by the Organic substance in denitrifying bacteria degrading waste water, denitrogenation；
(6) anoxic pond water outlet enters amphimicrobian pond, in amphimicrobian pond, dissolved oxygen is 0.3-0.5mg/L, enter comprehensive adjustment pond together with the flushing water processed with air-floating apparatus after denitrifying bacteria and nitrobacteria denitrogenation and washings, remove long fibre and foreign material further；
(7) water outlet of comprehensive adjustment pond enters comprehensive flocculation sedimentation tank, adds PAC and PAM, PAC and PAM addition and the ratio entering comprehensive flocculation sedimentation tank waste water weight is 1:8 × 10 respectively in comprehensive flocculation sedimentation tank3-10×103, 1:4 × 105-6×105；
(8) comprehensive flocculation sedimentation tank water outlet enters comprehensive hydrolysis acidification pool, by the Organic substance being difficult to degrade in hydrolysed ferment bacterial degradation waste water；
(9) comprehensive hydrolysis acidification pool water outlet enters comprehensive Aerobic Pond, and in comprehensive Aerobic Pond, dissolved oxygen is 2.5-3mg/L, utilizes the Organic substance in nitrobacteria degrading waste water.
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| CN105948255B (en) * | 2016-06-23 | 2019-08-16 | 浙江微技环境修复工程有限公司 | A kind of processing method and system handling high-concentration sulfuric acid polymyxin fermentation waste water |
| CN106673365A (en) * | 2016-12-30 | 2017-05-17 | 四川师范大学 | Ramie production wastewater treatment method |
| CN106966548B (en) * | 2017-04-25 | 2020-09-22 | 大竹县全畅麻纺有限公司 | Method for producing ramie degumming water by using wastewater reaching discharge standard |
| CN108947679B (en) * | 2018-08-17 | 2021-09-28 | 江西线元生物科技有限公司 | Microbial organic fertilizer and preparation method thereof |
| CN113526799A (en) * | 2021-08-03 | 2021-10-22 | 中国热带农业科学院 | Method for treating wastewater generated after degumming and cooking of pineapple leaf fibers |
| CN113429086A (en) * | 2021-08-09 | 2021-09-24 | 黑龙江红豆杉亚麻纺织有限公司 | Process for treating production wastewater of hemp |
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| CN101428938B (en) * | 2008-12-04 | 2010-10-06 | 杨青淼 | Treatment process for garbage leachate |
| CN102092887B (en) * | 2009-12-10 | 2012-10-10 | 张家界奥威科技有限公司 | Treatment system and method for industrial waste water with high concentration of salt |
| CN101973661B (en) * | 2010-09-15 | 2012-03-28 | 长沙有色冶金设计研究院有限公司 | Treatment method of processing wastewater of Chinese galls |
| CN102344227B (en) * | 2011-08-05 | 2013-06-12 | 波鹰(厦门)科技有限公司 | Hairwork waste water cyclic utilization device and treatment method thereof |
| CN103224309B (en) * | 2013-04-25 | 2014-06-25 | 西华大学 | Leather waste water treatment system and treatment process |
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