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33 results about "Biological phase" patented technology

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

Wastewater treatment technology for textile dyeing and finishing industry

The invention discloses a wastewater treatment technology for the textile dyeing and finishing industry. The technological process is as follows: leading wastewater to enter into a regulating tank for pre-aeration regulation treatment, then using a water pump for lifting to a coagulative precipitation tank for coagulative precipitation, then leading the wastewater to enter into an anaerobic / anoxic hydrolysis tank, transforming organic matters which are difficult to degrade to the organic matters which are easy to bio-degrade under the common action of anaerobic and anoxic microorganisms, further leading the wastewater to enter into a sludge-film symbiotic system which comprises both suspended activated sludge and biofilm sludge, and has the advantages of large biomass, abundant biological phases and high removal efficiency, and finally carrying out secondary settling, thereby leading the outlet water CODcr to be 30-60mg / L. Compared with other advanced treatment technologies, the technology has the advantages of strong operability, low operation cost, stable operation and the like.
Owner:SHANGHAI INST OF TECH

Three Stage, Multiple Phase Anaerobic Digestion System and Method

A three stage, multiple phase anaerobic digestion system and method designed to separate the biological phases, optimize microbial activity in each phase, and significantly increase system reliability and energy production. The system physically separates the biological phases of anaerobic digestion based on particle size, particle density, and solubility of metabolic products. The system allows a complex multi-phased biological system to develop without the need for excessive control or operator intervention.
Owner:ADVANCED BIO ENERGY DEV

Efficient anti-oxidative acne-removing handmade soap

The invention relates to a high-efficiency anti-oxidation and anti-acne handmade soap, which is characterized in that: calculated according to the weight fraction, it includes the following components: 10-15 parts of Chinese medicine extract, 5-10 parts of Phyllostachys pubescens leaf extract, 1-10 parts of Pyracantha fruit extract 3 parts, 1-3 parts of indigo fruit extract, 1-2 parts of mangosteen husk extract, 1-2 parts of Italian Buglossia extract, 2-4 parts of lychee leaf extract, 2-4 parts of bayberry leaf extract, Perilla leaf extract 1‑2 parts, mugwort extract 1‑2 parts, nicotinamide 6‑10 parts, tea saponin 0.3‑1 part, seabuckthorn seed oil 70‑100 parts, natural soap base 250‑350 parts. The handmade soap raw material extract of the present invention is extracted by ultrasonic extraction. This process has high extraction efficiency, and the utilization rate of active ingredients in plant and fruit medicines is extremely high, because the biological transdermal accelerator is derived from plant extracts and has good biophase Capacitive, and will not cause damage to the skin, with safety.
Owner:宁波秋日小城智能科技有限公司

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

Method for processing breeding wastewater through multi-biological-phase zoogloea packing

The invention discloses a method for processing breeding wastewater through multi-biological-phase zoogloea packing. The method includes the following steps of firstly, culturing and domesticating multi-biological-phase zoogloea; secondly, processing livestock breeding wastewater. Through the extra-large cation exchange capacity and microbial affinity of the multi-biological-phase zoogloea packing, the perfect combination of physical adsorption removal and biological degradation removal is achieved, and the method has outstanding denitrification capacity; a stable microbial system is formed, the microorganism concentration is tens times higher than that of an activated sludge process, impact load resistant capacity is strong, and basically no residual sludge exists. Running and operating are quite simple and reliable; compared with a conventional biochemical technology, investment is basically equal to or slightly higher than that of other processes, and running cost is reduced by about 90%.
Owner:JIANGXI GAIA ENVIRONMENTAL SCI & TECH CO LTD

Ponderomotive phase plate for transmission electron microscopes

A ponderomotive phase plate system and method for controllably producing highly tunable phase contrast transfer functions in a transmission electron microscope (TEM) for high resolution and biological phase contrast imaging. The system and method includes a laser source and a beam transport system to produce a focused laser crossover as a phase plate, so that a ponderomotive potential of the focused laser crossover produces a scattering-angle-dependent phase shift in the electrons of the post-sample electron beam corresponding to a desired phase contrast transfer function.
Owner:LAWRENCE LIVERMORE NAT SECURITY LLC

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

Nitrogen and phosphorus removing MNBR biofiller

The invention belongs to the technical field of nitrogen and phosphorus removing biofillers for sewage treatment, particularly discloses nitrogen and phosphorus removing MNBR biofiller, and solves theproblems of blockage and agglomeration of a filter material, nonuniform water distribution and gas distribution, partial accumulation of a dispersed filler, blockage of a water outlet grille and thelike in the prior art. The nitrogen and phosphorus removing MNBR biofiller adopts an overall cylindrical structure, and comprises an inner ring layer, a middle ring layer, an outer ring layer and a filler matrix, wherein the filler matrix comprises the following raw materials: polypropylene, polyvinyl chloride, polyvinyl alcohol, polyacrylamide and an antioxidant. Due to a special production technology and the special structure, the biofiller provided by the invention gives full play to the advantages of an attached phase and a biological phase, has the advantages of large specific surface area, good hydrophilicity and bioaffinity, high bioactivity, fast film formation, good treatment effect, strong impact resistance, a long service life and the like, and is especially applicable to high-concentration sewage which is difficult to degrade.
Owner:河南海天环境科技有限公司

Sludge decrement type biomembrane piled ball packing, preparation method and application

This invention discloses a method for preparing biomembrane filler with stacked ball structure for reducing sludge amount, and its application. The biomembrane filler is composed of natural stone material, thermosetting resin binder, curing agent, and biomembrane carrier with certain particle diameters. The biomembrane filler can reduce the amount of sludge in high-concentration organic wastewater. The biomembrane filler has such advantages as stable biomembrane hanging and running. The stacked ball structure optimizes sludge retention time and hydraulic retention time, enriches the biological phase, and avoids the restriction of specific surfacearea to the biological amount in traditional biomembrane method. The biomembrane filler also optimizes the separation conditions of wastewater and suspended solids. The method has such advantages as simple process, easy maintenance, low construction and running cost of wastewater treatment plant, no secondary pollution, high efficiency, and high profit, and is environmentally friendly.
Owner:NANKAI UNIV

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

Method for improving anaerobic digestion performance of biomass wastes by biological phase separation and optimization technology

ActiveCN102559771AFully and uniformly degradedIncrease pH buffer volumeWaste based fuelFermentationPh bufferingMethanation
The invention discloses a method for improving the anaerobic digestion performance of biomass wastes by a biological phase separation and optimization technology and belongs to the technical field of treatment and recycling of the solid wastes. The technology is characterized in that: solid residue and liquid of materials are subjected to anaerobic digestion under different conditions, a liquid phase enters a methane production reactor directly, solid matter enters an acidification reactor, acidification phase starting optimization of two-phase anaerobic digestion is performed, and then a product enters the methane production reactor, and mass distribution of acidification and methanation phases is optimized, so the coupled linkage of the acidification phase and the methanation production phase is realized, different material components can be fully degraded, and the pH buffering capacity of a microorganism system can be improved; and therefore, the material inlet load of the whole system can improved, the volume of the reactor is reduced, treatment cost is reduced, and the conversion rate of the system is improved.
Owner:BEIJING UNIV OF CHEM TECH

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

Method for treating wastewater by technique of sludge decrement type biomembrane piled ball packing

This invention relates to a method for treating wastewater with biomembrane filler with stacked ball structure for reducing sludge amount. The method comprises: hanging and culturing biomembrane filler with stacked ball structure, domesticating biomembrane, inoculating biomembrane, and treating wastewater. The method can realize the treatment on high-concentration organic wastewater, such as soybean sauce wastewater or domestic sewage. The stacked ball structure enriches the biological phase, and avoids the restriction of specific surfacearea to the biological amount in traditional biomembrane method. The biomembrane filler can largely reduce sludge amount by adjusting the running parameters. This invention can omit double precipitation pool and residual sludge treatment apparatus, thus can lower investment and running and management cost. The reduction of sludge can avoid secondary pollution caused by residual sludge treatment and sludge final treatment.
Owner:NANKAI UNIV

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

Nitrogen-containing organic wastewater treatment system and method thereof

The invention provides a nitrogen-containing organic wastewater treatment system. The system includes a pretreatment tank, an anoxic reaction tank, an aerobic reaction tank and a sedimentation tank which are sequentially connected through a pipeline, the aerobic reaction tank is sequentially provided with a first reaction zone and a second reaction zone along a water discharging direction, a suspension carrier is arranged in the first reaction zone, and a trap is arranged in the second reaction zone. The invention further provides a nitrogen-containing organic wastewater treatment method. Thesuspension carrier is added into the independent zone at the front end of the aerobic reaction tank to form a high-biomass and high-load zone in order to enhance the denitrification and decarbonization treatment effect of high-concentration organic wastewater. The system and the method which use the suspension carrier achieve creation of a rich biological phase, large biomass and a high nitrification and denitrification efficiency, can inhibit sludge swelling, and are simple, economical and efficient. The system and the method also can be used to upgrade and reconstruct sewage treatment facilities.
Owner:TONGJI UNIV

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

Organic ecological controlled-release fertilizer and preparation process thereof

The present invention relates to an organic ecological controlled-release fertilizer and a preparation process thereof. According to the present invention, the three fertilizer varieties such as the organic fertilizer, the inorganic fertilizer and the microorganism fertilizer are integrally fused by using the multi-stage layering granulation process to form the granular fertilizer, and then the coating agent is used to coat a layer of the natural polymer adhesion film on the particle surface, such that the nutrient release is gradually controlled according to the crop fertilizer requirement rule so as to meet the crop requirement; and the fertilizer is the novel multi-dimensional structure green fertilizer with characteristics of biological phase, biochemical characteristics, plant stability, high efficiency, high quality and no pollution, and further integrates the stable effect of the long-lasting microorganism organic fertilizer of the microorganism compound bacterial fertilizer and the rapid effect and the synergy of the inorganic fertilizer.
Owner:QINGDAO WEIYE FORGING & STAMPING MACHINERY CO LTD

Device for degrading high-concentration petroleum emissions

The invention provides a device for degrading high-concentration petroleum emissions. The device comprises a biological trickling filter. The device can be used for purifying high-concentration petroleum industrial waste gas. The device has the following advantages: the device is suitable for high-concentration multi-component petroleum industry exhaust gas; a multilayer bio-filler is arranged inthe biological trickling filter to treat various kinds of volatile petroleum exhaust gases; the biological phase concentration is high, automatic adjustment of nutrient addition, the temperature, thehumidity and the pH value in the device can be achieved, all environment parameters in the biological trickling filter are effectively stabilized, and the efficient and stable running of the device isensured; and the device is preferably suitable for the petrochemical industry.
Owner:YANCHENG JINRUI PETROLEUM MACHINERY CO LTD

Column shape chromogenic chip analyzer

This invention relates to one column develop chip analyzer, which comprises rotation socket to contain biological phase collection device by use of motor and image receiver connected to computer, wherein the image receiver lens is calibrated to the collection device on rotation socket driven by motor to collect multiple color develop chips by the image receiver; the image judges programs to display test result through the computer color label.
Owner:KAIWOOD TECH

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

Sludge decrement type biomembrane piled ball packing, preparation method and application

This invention discloses a method for preparing biomembrane filler with stacked ball structure for reducing sludge amount, and its application. The biomembrane filler is composed of natural stone material, thermosetting resin binder, curing agent, and biomembrane carrier with certain particle diameters. The biomembrane filler can reduce the amount of sludge in high-concentration organic wastewater. The biomembrane filler has such advantages as stable biomembrane hanging and running. The stacked ball structure optimizes sludge retention time and hydraulic retention time, enriches the biological phase, and avoids the restriction of specific surfacearea to the biological amount in traditional biomembrane method. The biomembrane filler also optimizes the separation conditions of wastewater and suspended solids. The method has such advantages as simple process, easy maintenance, low construction and running cost of wastewater treatment plant, no secondary pollution, high efficiency, and high profit, and is environmentally friendly.
Owner:NANKAI UNIV

Prepn of biocompatible four component microcapsule

The invention discloses a preparation method of four-component microcapsules with biocompatibility. The multi-component system is composed of sodium alginate (SA), sodium cellulose sulfate (CS), calcium chloride and polymethylene biguanidine hydrogen chloride (PMCG). The mixture of SA and CS is dropped into calcium chloride Solid pre-capsules are formed in the solution, and then transferred into PMCG for reaction to obtain microcapsules. The commercially available raw material PMCG is a high-viscosity aqueous solution containing 35% PMCG, which contains small molecular impurities that are toxic to microorganisms. After ethanol precipitation, centrifugation, vacuum drying and freeze-drying, the harmful substances can be completely removed. . The capsules prepared by the present invention can not only independently adjust the parameters of the capsules, such as: capsule size, film thickness, mechanical strength and permeability, and the characteristics of the capsules can be adjusted and optimized according to different requirements of practical applications; Capacitive, is a promising and well-performing immobilization system for cell culture.
Owner:ZHEJIANG UNIV

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

Method for treating wastewater by technique of sludge decrement type biomembrane piled ball packing

This invention relates to a method for treating wastewater with biomembrane filler with stacked ball structure for reducing sludge amount. The method comprises: hanging and culturing biomembrane filler with stacked ball structure, domesticating biomembrane, inoculating biomembrane, and treating wastewater. The method can realize the treatment on high-concentration organic wastewater, such as soybean sauce wastewater or domestic sewage. The stacked ball structure enriches the biological phase, and avoids the restriction of specific surfacearea to the biological amount in traditional biomembrane method. The biomembrane filler can largely reduce sludge amount by adjusting the running parameters. This invention can omit double precipitation pool and residual sludge treatment apparatus, thus can lower investment and running and management cost. The reduction of sludge can avoid secondary pollution caused by residual sludge treatment and sludge final treatment.
Owner:NANKAI UNIV

Organic ecological controlled-release fertilizer and preparation process thereof

The invention relates to an organic ecological controlled-release fertilizer and a preparation process thereof. According to the method, three series of varieties of fertilizers, such as organic fertilizers, inorganic fertilizers and microbial fertilizers are fused together by adopting a multi-stage layered granulation process to form granules, and then the surfaces of the granules are coated witha layer of natural polymer colloidal film by utilizing a coating agent, so that the purposes of gradually controlling the release of nutrients and providing the nutrients for crops according to the fertilizer requirement rule of the crops are achieved. The fertilizer is an efficient high-quality pollution-free green fertilizer with a novel multi-dimensional structure, biochemical characteristicsof a biological phase system and plant stability characteristics. The fertilizer integrates the long-acting effect of a microbial composite bacterial fertilizer, the stable effect of a microbial organic fertilizer and the quick effect and synergism of the inorganic fertilizer.
Owner:青岛华夏沃土生物科技有限公司
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