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33 results about "Biological phase" patented technology

A distinct period or stage in a biological process or cycle. [GOC:jl]

Two-phase two-period anaerobic organism reactor for processing wastewater

The invention discloses a two-phase tow-period anaerobic organism reactor processing wastewater. The reactor comprises a reactor body, a circulation tank, an alkali adding device, a biological phase separator, a primary three-phase separator and a secondary three-phase separator, wherein the circulation water tank and the alkali adding device are arranged on the outer side of the reactor body, and the biological phase separator, the primary three-phase separator and the secondary three-phase separator are arranged in the reactor body from bottom to top, a closed acidification reaction chamberis arranged at the lower part of the reactor body, and the biological phase separator is arranged at the top in the acidification reaction chamber; a methane-generating main reaction area is formed between the upper part of the acidification reaction chamber and the primary three-phase separator, and a methane-generating fine processing area is formed between the primary three-phase separator andthe secondary three-phase separator. The anaerobic organism reactor provided by the invention has the advantages that the structure is compact, the occupying area is small, the organic load reaches to 40kg COD (chemical oxygen demand)/(m<3>.d) when the reactor is used for processing high-concentration wastewater generated by pulping and paper making or similar wastewater, and the stability and the flexibility are extremely high when the reactor is used for processing wastewater with variable water quantity and water quality.
Owner:SOUTH CHINA UNIV OF TECH +1

Intelligent control type two-phase anaerobic biofilm biogas fermentation system and process

The invention relates to an intelligent control type two-phase anaerobic biofilm biogas fermentation system and process. The intelligent control type two-phase anaerobic biofilm biogas fermentation system comprises a hydrolytic acidification phase fermentation device, a methane production phase fermentation device and an intelligent PLC (Programmable Logic Controller), and is characterized in that an acidified material storage and solid-liquid separation device is arranged between the hydrolytic acidification phase fermentation device and the methane production phase fermentation device; an acidified liquid feeding hole is formed in the lower part of the acidified material storage and solid-liquid separation device, an acidified liquid discharging hole is formed in the upper part and a residue discharging hole is formed in the bottom; an acidified liquid feeding pump is arranged between the acidified liquid feeding hole and a discharging hole of the hydrolytic acidification phase fermentation device; a residue reflowing pump is arranged between the residue discharging hole and a feeding hole of the hydrolytic acidification phase fermentation device; and a methane production phase feeding pump is arranged between the acidified liquid discharging hole and a feeding hole ofmethane production phase fermentation device. Based on a biological phase separation technology, organic loads of feeding and discharging, temperature, mechanical stirring, biogas liquid reflowing load and the like of the system are accurately controlled; and the preparation of low-temperature and high-effect biogas by organic wastes is realized.
Owner:LIAONING UNIVERSITY OF TECHNOLOGY

Biological bamboo charcoal as well as preparation process and application thereof

The invention relates to biological bamboo charcoal, a preparation process of the biological bamboo charcoal and an application of the biological bamboo charcoal to the government of sewage containing phenol. The biological bamboo charcoal uses bamboo charcoal as a carrier, microbes are immobilized on the bamboo charcoal and comprise pseudomonas biological phase bacterium fluid. According to the preparation process of the biological bamboo charcoal, the bamboo charcoal is used as the carrier, and the domesticated microbes are treated through an oscillation absorption method and are immobilized on the bamboo charcoal, and the microbes the pseudomonas biological phase bacterium fluid. The bamboo charcoal as the biological carrier has the advantages that: (1) the bamboo charcoal has low price, is easy to obtain and realizes the environment-friendly effect; (2) the physical and chemical performance of the bamboo charcoal are stable, and the mechanical intensity and the durability are good; and (3) rich pores on the inner surface and the outer surface of the bamboo charcoal can provide growth and inhabitation places for the microbes. The biological bamboo charcoal has the following advantages in the water treatment application: (1) the biological bamboo charcoal can be repeatedly used, and the cost of the carrier is low; (2) the operation cost is low, and the reaction process is easy to control; and (3) the defect that the bamboo charcoal is easy and fast to reach the absorption saturation during the sewage purification is overcome.
Owner:ZHEJIANG FORESTRY UNIVERSITY

Modeling method of heavy metal optimal control pollutant screening model based on river ecosystem

The invention discloses a modeling method of a heavy metal optimal control pollutant screening model based on a river ecosystem, and relates to the technical field of evaluation of risks of the river ecosystem. The modeling method of the heavy metal optimal control pollutant screening model based on the river ecosystem aims to screen one or more heavy metal optimal control pollutants to represent the heavy metal pollution status of a river. The method includes the steps that toxic coefficients, pollution indexes and the detection ratio of heavy metal are selected to calculate aqueous phase ecological risk indexes, biological phase ecological risk indexes and solid phase ecological risk indexes respectively, the heavy metal optimal control pollutant screening model is built, and heavy metal with high comprehensive ecological risk indexes is screened as the heavy metal optimal control pollutants of the river in a research region. The built model is applied to evaluation of the combined effect of five toxic heavy metal pollutants of the Songhua River, and the research conclusion is matched with correlational research results of other scholars about the Songhua River. The model is used for screening the heavy metal optimal control pollutants based on the river ecosystem.
Owner:黑龙江省环境科学研究院 +3

DSA three-dimensional electrode electrochemical water quality stabilization device and technology

The invention discloses a water quality stabilization device and technology for circulating cooling water. According to the technology, with DSA electrode electrochemical water quality stabilization as the core, the technological process of electrolysis, descaling, filtration and scale concentration is optimized to achieve water quality stabilization control over the circulating cooling water. In the electrochemical action process, raw water enters an electrolysis zone through a water distribution system for a softening reaction, Cl2 is generated at the same time to achieve effective control over the system biophase, a subsequent fiber bundle filtering system effectively shields calcium carbonate crystal nuclei and biological slime generated by the electrochemical action, and when a cathode plate scales and the electrochemical process is affected, an intermediate electrode is reversely connected to descale the cathode plate. The intermediate electrode is introduced into the technology, and thus the cathode plate is effectively descaled without affecting the service life of an anode; multiple water quality stabilization units for raw water distribution, an electrochemical reaction, biophase control, suspended solid filtration and the like are integrated, and thus the integration level of main equipment is increased; meanwhile, solid-liquid separation and sludge concentration are achieved in the main equipment, it is unnecessary to additionally arrange other equipment or devices, the mechanization degree is high, the application range is wide, the capital construction investment and the operation cost are low, the occupied area is small, and operation is easy.
Owner:UNIV OF JINAN +1

Method and system for treating sewage by adopting biological phase coupling aerobiotic FBC technology

PendingCN109942154ARealize perfect energy saving and carbon savingImprove denitrification effectWater contaminantsMultistage water/sewage treatmentSludgeOxygen
The invention provides a method and system for treating sewage by adopting a biological phase coupling aerobiotic FBC technology. The method comprises the steps that pretreated raw water is conveyed to a first-stage anaerobic tank, a second-stage anaerobic tank, an anoxic tank and an aerobiotic FBC tank in sequence for treatment of a nitrogen and phosphorus removal technology to obtain a mixed liquid; the mixed liquid is subjected to flow division, a part of mixed liquid is conveyed back to the anoxic tank through an oxygen elimination tank, and the other part of the mixed liquid is conveyed to a final sedimentation tank for treatment to obtain sludge and sewage; the sewage is discharged into a deep sewage removal treatment unit for subsequent treatment; the sludge is subjected to flow division, a part of sludge is directly conveyed to the anaerobic tanks, and the other part of sludge is conveyed to a deep sludge treatment unit for subsequent treatment. According to the method and system for treating the sewage, energy utilization, reclamation, short-cut nitrification and denitrification and anaerobic ammonia oxidation of a main technology for town sewage are ingeniously integrated; perfect energy conservation and carbon saving of the system are achieved, and the method and system for treating the sewage can be widely popularized in upgrading and reconstruction of sewage treatment plants and the market of reclaimed water utilization on a national scale.
Owner:THUNIP CORP LTD +1

Biochemical treatment sewage modification technology

The invention discloses a biochemical treatment sewage modification technology. The biochemical treatment sewage modification technology has the advantages that (1) the water quality of output water is good; the concentration of suspended solids in the output water is basically zero due to efficient interception of a membrane; the membrane has an interception effect on free thalli and certain difficult-to-degrade macromolecular granular materials; biological phases in a bioreactor are abundant, nitrifying bacteria with relatively long generation time are enriched, and protozoa and histozoa also can grow; (2) the residual sludge amount is small; in immersion type ultra-filtration, the water quality of the output water is not influenced by operation with long sludge retention time due to theinterception effect of the membrane; the residual sludge amount is reduced so that the sludge treatment cost can be reduced and operation of a sewage treatment technology is simplified; (3) equipmentis compacted and the occupied land is small; the sludge concentration in the bioreactor is high so that the volume load can be greatly improved and a secondary sedimentation tank and filtering equipment are replaced with a membrane assembly, so that compared with a conventional biological treatment technology, the occupied area of the bioreactor can be greatly reduced and the technology has a wide market prospect.
Owner:沧州泓阳环保科技有限公司

dsa three-dimensional electrode electrochemical water quality stabilization device and process

InactiveCN105800800BLife without lossGood hardness removal effectSpecific water treatment objectivesWater contaminantsElectrochemical responseElectrolysis
The invention discloses a water quality stabilization device and technology for circulating cooling water. According to the technology, with DSA electrode electrochemical water quality stabilization as the core, the technological process of electrolysis, descaling, filtration and scale concentration is optimized to achieve water quality stabilization control over the circulating cooling water. In the electrochemical action process, raw water enters an electrolysis zone through a water distribution system for a softening reaction, Cl2 is generated at the same time to achieve effective control over the system biophase, a subsequent fiber bundle filtering system effectively shields calcium carbonate crystal nuclei and biological slime generated by the electrochemical action, and when a cathode plate scales and the electrochemical process is affected, an intermediate electrode is reversely connected to descale the cathode plate. The intermediate electrode is introduced into the technology, and thus the cathode plate is effectively descaled without affecting the service life of an anode; multiple water quality stabilization units for raw water distribution, an electrochemical reaction, biophase control, suspended solid filtration and the like are integrated, and thus the integration level of main equipment is increased; meanwhile, solid-liquid separation and sludge concentration are achieved in the main equipment, it is unnecessary to additionally arrange other equipment or devices, the mechanization degree is high, the application range is wide, the capital construction investment and the operation cost are low, the occupied area is small, and operation is easy.
Owner:UNIV OF JINAN +1

Two-phase two-period anaerobic organism reactor for processing wastewater

The invention discloses a two-phase tow-period anaerobic organism reactor processing wastewater. The reactor comprises a reactor body, a circulation tank, an alkali adding device, a biological phase separator, a primary three-phase separator and a secondary three-phase separator, wherein the circulation water tank and the alkali adding device are arranged on the outer side of the reactor body, and the biological phase separator, the primary three-phase separator and the secondary three-phase separator are arranged in the reactor body from bottom to top, a closed acidification reaction chamberis arranged at the lower part of the reactor body, and the biological phase separator is arranged at the top in the acidification reaction chamber; a methane-generating main reaction area is formed between the upper part of the acidification reaction chamber and the primary three-phase separator, and a methane-generating fine processing area is formed between the primary three-phase separator andthe secondary three-phase separator. The anaerobic organism reactor provided by the invention has the advantages that the structure is compact, the occupying area is small, the organic load reaches to 40kg COD (chemical oxygen demand) / (m<3>.d) when the reactor is used for processing high-concentration wastewater generated by pulping and paper making or similar wastewater, and the stability and the flexibility are extremely high when the reactor is used for processing wastewater with variable water quantity and water quality.
Owner:SOUTH CHINA UNIV OF TECH +1
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