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314results about How to "High removal rate" patented technology

Monosodium glutamate production wastewater treating agent and wastewater treatment method

The invention belongs to the field of treatment of wastewater in food enterprises and in particular relates to a treating agent of wastewater in monosodium glutamate production enterprises and also relates to a monosodium glutamate production wastewater treatment method. The monosodium glutamate production wastewater treating agent comprises the following components in parts by weight: a physical water purifying agent, a compound microbial agent and an enzymic preparation, wherein the physical water purifying agent comprises 1-5 parts of activated carbon, 1-5 parts of organically modified zeolite and 1-5 parts of polyacrylamide; the compound microbial agent comprises 0.02-0.1 part of konjac acidovorax powder, 0.05-0.2 part of arthrobacter powder, 0.05-0.2 part of bacillus laterosporus powder and 0.04-0.2 part of moraxella powder; and the enzymic preparation comprises 0.05-0.1 part of xylanase, 0.04-0.09 part of glutaminase and 0.01-0.06 part of acid proteinase. By adopting the wastewater treating agent and the wastewater treatment method, complex large-particle organic matters difficult to degrade are hydrolyzed into simple organic matters easy to degrade, thus greatly reducing the content of SS (suspended substance) in the wastewater, and the treated wastewater has high BOD (biochemical oxygen demand) and COD (chemical oxygen demand) removal rates and reaches the specified discharge standard.
Owner:JINAN HAOZE ENVIRONMENTAL PROTECTION TECH CO LTD

Waste water treatment process

The invention discloses a waste water treatment process which comprises the following steps that 1) waste water enters a primary sedimentation tank through a grid to remove suspended matters; 2) the waste water overflows from the primary sedimentation tank into a regulating tank after the suspended matters are removed, and lime milk is added to adjust the pH value of the waste water to be neutral; 3) the waste water of which the pH value is adjusted to be neutral naturally flows into a neutral aeration tank and is mixed with compressed air in the aeration tank, and Fe<2+> in the waste water is converted to Fe<3+>; 4) the waste water in the aeration tank is injected to a flocculation reaction tank, polyacrylamide flocculant is added to the waste water, and then the waste water is pumped to an inclined tube sedimentation tank; and 5) supernate of the waste water in the inclined tube sedimentation tank overflows into a contact oxidation tank and is mixed with the compressed air filled into the contact oxidation tank, organic matters in the waste water are subjected to oxygenolysis, and the waste water in the contact oxidation tank is deposited through a sedimentation tank and then overflows into a clean water tank. After being treated by the waste water treatment process, the waste water can reach the standard of Integrated Waste Water Discharge Standard (GB 8978-1996); and in addition, the operating cost of a waste water treatment system is lower, and the waste water treatment volume is large .
Owner:CHONGQING IRON & STEEL (GRP) CO LTD

Composite microbial preparation capable of efficiently degrading organic waste and application thereof

InactiveCN103146623AHigh removal rateGrowth inhibitionFungiBacteriaAeration rateAlcaligenes faecalis
The invention discloses a composite microbial preparation capable of efficiently degrading organic waste and application thereof. The composite microbial preparation contains white-rot fungus, penicillium diversum, pseudomonas putida, alcaligenes faecalis, bacillus subtilis and bacillus thuringlensis, wherein the bacterial count of the white-rot fungus accounts for 20-40% of the total bacterial count of the composite microbial preparation, the bacterial count of the penicillium diversum accounts for 5-15% of the total bacterial count, the bacterial count of the pseudomonas putida accounts for 10-20% of the total bacterial count, the bacterial count of the alcaligenes faecalis accounts for 5-15% of the total bacterial count, the bacterial count of the bacillus subtilis accounts for 10-20% of the total bacterial count, and the bacterial count of the bacillus thuringlensis accounts for 10-20% of the total bacterial count. The invention also provides the application of the composite preparation in sewage treatment. The composite microbial preparation has the advantages of being capable of rapidly decomposing organic waste, effectively inhibiting the growth of harmful microbes, enabling suspended matters in sewage to flocculate, reducing aeration rate, effectively improving sewage chromaticity and turbidity, eliminating stink and reducing sludge discharge.
Owner:SHANGHAI YINUO BIOTECH CO LTD

Method for reducing ammonium content in paper-making reconstituted tobacco

The invention relates to a method for reducing ammonium content in paper-making reconstituted tobacco, belongs to the technical field of the paper-making reconstituted tobacco and is an improvement of an existing method for producing paper-making reconstituted tobacco. The improvement refers to that an electrodialysis ammonium removing process composed of a tobacco raw material extracting solution pretreating procedure and an electrodialysis ammonium removing procedure is added after a tobacco raw material solid-liquid separation process and before a process of concentrating extracting solution to prepare a coating material, wherein a, the tobacco raw material extracting solution pretreating procedure includes that insoluble solids with granular size larger than 200nm and colloidal substances in an extracting solution are removed by a ceramic membrane microfiltration technology; b, the electrodialysis ammonium removing procedure is finished in an electrodialysis device with a conductivity meter, and a working curve about correlation between a conductivity drop rate and ammonium removing amount after ammonium is removed by light-room raw materials is utilized to control the ammonium removing amount. The method for reducing the ammonium content in the paper-making reconstituted tobacco has the advantages that ammonium ion removing rate is high in the tobacco raw material extracting solution, raw material loss is less, ammonium ion content is convenient to control, cost is low, and an application value is high.
Owner:YUNNAN RES INST OF TOBACCO SCI

Preparing multistage adsorbent for difficult degradative organic wastewater in high concentration, and method of use

The invention publishes a multistage absorbent preparation of the organic wastewater which is high potency and difficult to degrade, and its application method. The preparation method is as follows: 1) at 100 to 200deg.c., under the oxygen deficit condition, the nature biomass is carbonized for 2 to 6 hours, forming the primary absorbent with the part carbonizes; 2) inputting the primary absorbent of the part carbonized in the high potency organic wastewater, the quality volume ratio of the absorbent and the highly concentrated organic wastewater is 1:500 to 1:10000, after the agitation, removeing the organic pollutant which is at the high potency and difficult to degrade in the waste water; after the precipitation, recycling the primary absorbent of the part carbonize which adsorbs the organic pollutant, after drying, under 400 to 700deg.c. carrying on the further carbonize for 2 to 6 hours, preparing the secondary absorbent. The assignment action mechanism pretreats the organic wastewater which has the high potency and difficult to degrade;and simultaneously uses the strong surface adsorption mechanism of the secondary absorbent which is carbonized completely, the multistage absorbent is suitable to the adsorption treatment in polar and non-polar organic wastewater, and especially suitable to the adsorption treatment of high density organic wastewater in agricultural chemicals waste water, coked waste water and printing waste water and so on.
Owner:ZHEJIANG UNIV
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