356results about How to "less investment" patented technology

The invention discloses a split-flow rectisol device, which comprises an absorption tower, a medium pressure flash tower, a reabsorber, a hot regenerating tower, a methanol water tower, a tail gas washing tower, a plurality of heat exchangers, pumps and a circulation compressor; and the upper section of the reabsorber is provided with a flash distillation section. The split-flow rectisol device is not provided with a CO2 product tower, and reduces the complexity of the flow and the investment on the premise of ensuring that CO2 product gas is qualified. The split-flow rectisol device is provided with a novel split-flow rectisol (acid gas removal) flow for absorption from a semi-lean methanol liquid feeding absorption tower on the upper section of the reabsorber, reduces the dosage of lean methanol of the absorption tower, further can reduce the energy consumption of the hot regenerating tower for hot regeneration, and saves the dosage of gas stripping nitrogen, consumption of steam, and low level cold quantity used when the lean methanol is cooled.

The invention relates to a method for treating coking waste water by an electro-Fenton-coagulation combination process, which comprises the following steps of: 1) introducing biochemical effluent of the coking waste water into a regulation pond, regulating water quality and water volume, and regulating the pH value to be between 2 and 4; 2) introducing the effluent in the regulation pond into an electrochemical reactor, adding H2O2, and regulating current density to be between 50 and 300 A/m<2>; 3) introducing the effluent in the electrochemical reactor into a coagulation sedimentation pond, regulating the pH value to be between 7 and 8 by using alkaline liquor, adding a flocculating agent, performing a flocculating reaction, and performing mud water separation in the sedimentation pond; and 4) filtering the effluent in the sedimentation pond by a sand leach unit, and discharging. By the method, the biochemical effluent of the coking waste can be deeply treated, chemical oxygen demand(COD), ammonia nitrogen and chromaticity of the effluent can meet the requirements of national first-level discharge standards and the water inflow requirement of the advanced treatment of membrane separation.

The invention relates to a middle-low-temperature flue gas desulfurization, dedusting and denitration and denitration catalyst thermal-desorption integrated device. The integrated device comprises a desulfurization, dust-collection and purification section, an desorption, ammonia-spraying and mixing section and a denitration reaction section which are integrated in a tower body from bottom to top, wherein the desulfurization, dust-collection and purification section comprises an ash bin, a closed dust discharging valve, a flue gas inlet, an airflow uniform-distribution and flow-guiding plate, filter bags and a pulse-jet device; the desorption, ammonia-spraying and mixing section comprises an ammonia-spraying structural body, a thermal desorption gas conveying-jetting structural body and mixed flow-equalizing structural bodies; the denitration reaction section comprises a denitration catalyst and a purified flue gas outlet. Compared with the prior art, the integrated device has the beneficial effects that (1) the processes of desulfurization, dedusting and denitration of flue gas as well as the thermal desorption of the denitration catalyst are integrated; (2) the service life of the denitration catalyst is long; (3) the denitration efficiency is high; (4) ammonia gas and flue gas as well as high-temperature thermal desorption gas and flue gas are in full contact with each other; (5) the denitration catalyst can be regenerated through online thermal desorption; (6) a denitration catalyst dust-cleaning system can be omitted.

The process of producing cold rolled high strength extra-deep drawing steel sheet in a bell type furnace includes the following steps: 1. smelting and casting steel billet with chemical composition comprising C not more than 0.006 wt%, Si not more than 0.30 wt%, Mn 0.15-1.40 wt%, P not more than 0.08 wt%, S not more than 0.02 wt%, N 0.001-0.005 wt%, Al 0.03-0.06 wt%, B 0.0003-0.002 wt%, Ti 0.005-0.015 wt%, Nb 0-0.03 wt%, and Fe and inevitable impurity for the rest; 2. heating to 1100-1250 and rolling; 3. cold rolling in the reduction rate over 73 %; 4. annealing inside a hydrogen or nitrogen-hydrogen bell type furnace at 690-730 deg.c and 5. leveling after annealing. The steel sheet has strength up to 390 MPa, high elongation and r value, high ability of resisting rework brittleness, and ductile-brittle transition temperature lower than -40 deg.c.

The invention relates to a compound microalloy hot die steel material with high heat resistance and a preparation method thereof, belonging to the technical field of the manufacture process of die steel. The invention is characterized by comprising the following components by weight percent: 0.25% to 0.4% of C, 1.0% to 1.8% of Si, 0.01% to 0.3% of Mn, 3.5% to 5.0% of Cr, 2.0% to 3.5% of Mo, 0.8% to 1.5% of V, 0.03% to 0.07% of Nb, 0.05% to 0.1% of rare earth element (Ce+La), less than 0.02% of P, less than 0.02% of S and the balance of Fe. The preparation method of the hot die steel comprises the process of: (1) adding rare earth after melting; (2) remelting electroslag; (3) homogenizing at high temperature; (4) forging and dissolving solid; (5) spheroidizing annealing; and (6) heating to finally prepare the hot die steel. The hot die steel has the advantages of high purity, high heat resistance, good heat stability and excellent heat fatigability.

The invention discloses a feed additive by mixedly fermenting shrimp heads and vegetable feed proteins and a processing method thereof. The method comprises the following steps of: performing squeezing and crushing, pulping with water, and filtration and separation on the shrimp heads to separate out shrimp shells so as to obtain a shrimp paste raw material; mixing the shrimp paste and the vegetable feed proteins according to a proportion, adding bacteria for solid fermentation, and drying and crushing to prepare fermented feed protein powder; and drying the separated shrimp shells to prepare raw materials of chitosan and shrimp shell powder. The method has the advantages of simple process, small equipment investment and low cost; and the feed additive has the advantages of full aroma of the fermented feed protein powder, good palatability, high utilization rate of proteins, rich beneficial functional nutrients such as astaxanthin, small peptide, probiotics and the like, wide application to aquatic and livestock and poultry feeds, improvement of survival rate, good animal growth effect, good feed attraction to aquatic animals, capacity of replacing fish meal in the livestock and poultry feeds, capacity of greatly replacing fish meal in high-grade aquatic feeds, remarkable reduction of feed cost, contribution to environmental protection, power saving, efficiency improvement, and remarkable social and economic benefits.

The invention provides a novel process for preparing sulfur from industrial waste gypsum, which is to manufacture the sulfur or manufacture sulfur and by-product cement by reducing the industrial waste gypsum and carbon reduced materials. The industrial waste gypsum is waste gypsum residue discharged by production of phosphogypsum, desulfurization gypsum, fluorgypsum, citric acid gypsum and titanium pigment or waste residue which is discharged in industrial production and regards calcium sulphate as a main composition; and the carbon reduced materials can be coal, coke, petroleum residue or bitumen. The reduction process adopts a sulfur preparation process by one-stage or multi-stage reduction, and tail gas adopts a reducing and purifying process by one-stage or multi-stage catalysis. Theprocess can sufficiently utilize the industrial waste gypsum and manufacture the by-product cement, has the advantages of small investment, low cost, simple process, environmental protection and resource conservation, changes waste into valuable, and has significant social benefit and economic benefit.

The present invention discloses a non-intrusive resident load identification method based on S_Kohonen. The method comprises the steps: the step 1: determining a switching event according to the changing of an active power at a home electric power inlet, and when the switching event happens, collecting current samples of electric appliances having generation of the switching events at the home electric power inlet; the step 2: performing frequency-domain analysis of the collected electric appliance current samples, extracting the frequency-domain harmonic amplitudes of the collected electric appliance current samples as load features of each electric appliance, and forming a load feature base; the step 3: designing an S_Kohonen neural network suitable for resident load identification, and determining the number of nerve cells of the input layer and the output layer of the S_Kohonen neural network and the scale of the competition layer to determine a selection mode for obtaining the nerve cells and a learning algorithm of weight regulation; the step 4: performing parameter initialization; the step 5: performing training of the S_Kohonen network through a training set and performing test of the training set; and the step 6: regulating the network parameters to realize optimal network performances.

The invention discloses a method for manufacturing a capacitive touch screen, comprising: an electrode manufacturing process, respectively patterning the conductive film on the first surface and the conductive film on the second surface of the substrate to form a first group of sensing electrodes and a second group of sensing electrodes ; Wire production process, respectively in the first group of sensing electrodes and the peripheral area of ​​the second group of sensing electrodes screen printing metal paste and solidified, respectively forming the first group of external wires connected with the first group of sensing electrodes and the second group of connecting wires The second set of external leads to which the sense electrodes are connected. The manufacturing method of the capacitive touch screen can simplify the process, reduce the investment, reduce the unit price cost, and help to improve the rate of good products.

The semi-automatic mechanized brick producing line with automatic block forming machine includes one board feeding machine connected to one automatic block forming machine and one elevator, one rotary platform following the elevator and with fork lift tracks, one bogie on the bogie tracks perpendicular to the fork lift tracks, fork lift tracks stretching into the curing kiln, and one fork lift on the fork lift tracks and capable of returning to the elevator. The production line of the present invention has less investment, low power consumption, no pollution and other advantages, and is suitable for use in middle sized and small brick making enterprises.

The invention belongs to the technology field of coal gasification comprehensive utilization and provides particularly a technique for preparing methanol and natural gas from methane-containing synthetic gas. The technique can overcome the shortcomings of a processing scheme of methanol in synthetic gas in the prior art; and the technique comprises the following steps: methane-containing synthetic gas is pressurized and then mixed with recycle gas from a methanol synthetic tower to synthesize methanol; the methanol-containing gas from the methanol synthetic tower is heat-exchanged with the gas mixture fed into the tower and cooled, and methanol is separated; a part of the methanol-separated gas as purged gas is introduced into a methane synthesizing device, and the other part is introduced into the methanol synthetic tower to continuously react to obtain natural gas after it is pressurized via circulator, recycled and then mixed with the methane-containing synthetic gas. The technique combines synthesis of methanol of high CH4 inert gas and production of natural gas by re-synthesizing methane from purged gas obtained from methanol synthesis. With the technique, two synthesis pressures and heat energy utilization can be combined together; thus making full use of the material and achieving the purposes of saved investment, energy and consumption and good benefit.

A coarse coal slime hydraulic grading and sorting integration device and a sorting system using the device belong to the technical field of cleaning unit and are used for shortening technological processes of coal separation and improving the sorting accuracy of the coal slime. The grading and sorting integration device comprises a hydraulic grading swirler, an upwelling current sorter and a connecting barrel, which are connected in sequence. A coarse coal slime grading and sorting system is composed of the grading and sorting integration device, a hydraulic grading swirler barrel, a hydraulic grading swirler pump, an arc-shaped sieve, a coal slime centrifuge, a gangue dewatering sieve, a cleaned coal belt conveyer, a gangue belt conveyer and a main pipeline. The hydraulic grading swirler barrel is connected with the feeding hole of the hydraulic grading swirler, the overflow port of the hydraulic grading swirler is connected with the pipeline of a floatation system. The overflow port of the upwelling current sorter, the arc-shaped sieve, the coal slime centrifuge and the coal slime belt conveyer are connected in sequence. The overflow port at the bottom of the upwelling sorter is connected with the gangue dewatering sieve, the gangue belt conveyer and a thickener in sequence.

The monitoring system is composed of computer, base station and online monitoring nodes, which are interlinked through wireless send receive interface under controlled coordination of each program. The interlinking routes among them are built through route finding of node interaction so as to form self-organization network in real time. Each node can work alone independently or each node works in combination with each other based on self-organization network to realize monitoring on large area. The invention can monitor water quality, temperature and ocean wave in water area of ocean to serve ocean engineering, oil gas operation, to monitor pollution of ocean as well as to serve marine culture etc.

A liquid fertilizer is prepared from the sewage generated by preparing molasses alcohol through regulating pH value to be less than or equal to 1.5, high-temp high-pressure digestion by P2O5 or H2PO4 and HNO3, and using ammonia water and CaO to regulate its pH value to 6.0-7.0. Its advantages are complete nutrients, easy absorption and improving soil.

The invention discloses a filler-free synergistic compound fertilizer produced by a urine syrup ammonia-acid method to pelletize and a production method thereof. The production method thereof comprises the following steps: selecting raw materials according to the product formulation, and metering, crushing and evenly mixing the raw materials; adopting the urine syrup ammonia-acid revolving drum pelleting process, carrying out first-segment drying, second-segment cooling and coarse and fine screening on the mixture, and then feeding the screened mixture into a coating machine; utilizing the front end of the coating machine to spray fertilizer synergist by a continuous pulverization coating method, utilizing the middle end of the coating machine to spray pasty anti-blocking agent, and utilizing the tail end of the coating machine to add powdery anti-blocking agent; and adequately stirring and packaging to obtain the finished product. The filler-free synergistic compound fertilizer produced by the pelleting process of the urine syrup ammonia-acid method has small investment, simple operation, low production cost, obvious energy conservation effect, beautiful product appearance, good dissolubility and improved nutrient utilization ratio; and after the filler-free synergistic compound fertilizer is applied to crops, production and income are increased.

The invention relates to a printing method for textiles, in particular to a heat transfer digital printing method for natural fibers and regenerated cellulose fibers. The heat transfer digital printing method comprises the following steps of: spreading and printing a film or a composite film which is subjected to coating treatment and textiles subjected to sizing by using an ironing press at the temperature of between 40 and 100 DEG C for 30 to 90 seconds; stripping the film or the composite film; and drying the textiles subjected to printing, and ageing for color fixing. By the heat transfer digital printing method, the problem that a digital printing machine and a computer photogravure press cannot perform jet printing on the film directly is solved, and the obtained printing textiles have the characteristics of high resolution ratio of printing patterns and distinct gradation of flower types and can achieve a photo effect; and a process is easy to operate and low in production cost.

The invention belongs to the chemical engineering field, and specifically relates to a coal syngas circulation gas free methanation technology. The technology firstly divides a methanation reactor into two parts, the purified raw material gas is divided into a plurality of gas flows, then the gas flows is introduced into the front methanation reactor, wherein parts of the front methanation reactor are connected through a combination mode of serial connection and parallel connection; the gas in the each level of methanation reactors in the front part goes out from the outlet of the first reactor and the outlet is serially connected to other level methanation reactors, or the gas is divided into a plurality of gas flows and enters other level reactors which are connected through a combination mode of serial connection and parallel connection. The technology adopts water steam as the diluting gas for diluting the raw material gas in a methanation reactor, the water steam is mainly applied to the high temperature methanation reaction technology, the pressure of the by-product namely steam is larger than the methanation reaction pressure, and thus the steam can be directly added into the raw material gas in a methanation reactor. The technology does not need a circulation gas compressor, so the production cost is reduced. Because the methanation reaction is a strong heat dissipation reaction, the added water stream is reduced so as to improve the energy utilization rate.

The invention discloses a carbon and nitrogen content control method of processing super ferrite stainless steel with ladle refining furnace, comprising the procedures that, 1) during smelting ferrite stainless steel, arc furnace, induction furnace or converter are used for tapping, and argon oxygen decarburization furnace or vacuum oxygen decarburization furnace is used to reach the demand of steel liquid components of super ferrite stainless steel. 2) Ladle refinement: during power-on process, by blowing the mixture of coke oven gas and argon gas through the central hole of graphite electrodes, hydrogen containing plasma arc is formed at the lower end of graphite electrodes to achieve decarburization and denitrogen of liquid steel and guarantee the cleanness of liquid steel; among which the mixture proportion of coke oven gas and argon gas is between 95:5 and 5:95, with the pressure range between 0.02 and 10 MPa, the flow range of mixture gases between 0.01 and 50 Nm3/h; 3) During power-off process: gases blowing to the central hole of graphite electrodes are suspended; ladles are hung away from ladle refining furnace after components and temperature of steel liquid meet the requirement, and sent to the next procedure for casting.

The invention provides a particle electrode with photoelectrocatalysis functions, a process for preparation, and application. The particle electrode is composed of carrier porous graphite loading nanometer TiO2. The process for preparation comprises preprocess of graphite particles, preparation of manometer Tio2 colloidal sols with a sol-gel method, dipping and ageing, and annealing and heating activation. The process for preparation of the invention is easy, and has low investment. The particle electrode which is prepared with photoelectrocatalysis function has both photo catalysis function and electro catalysis function, compounds of photoproduction electron hole pairs can be minimized in three-dimensional electrode electro catalysis system, quantum efficiency can be increased, synergistic effects of photo catalysis and electro catalysis can be got, and biodegradability of sewage can be increased greatly. The invention is applied to treat various refractory organic pollutants, and has distinctive social and economic benefits and a wide application prospect.

The invention relates to a method for separating sodium fluoride crystals from silicon dioxide, in particular to a method for jointly producing sodium fluoride and sodium silicate by using sodium fluosilicate which is a by product of phosphate fertilizer production. The method of the invention comprises: a, stirring a sodium fluosilicate solid and 30 to 50 percent solution of sodium carbonate with a big force to perform a reaction to obtain solution containing sodium fluoride crystals and a silicon dioxide precipitate; b, adding sodium hydroxide into the solution obtained by the step a in a theoretical dose based on a molar ratio of Na2O to SiO2 of 30 to 50 percent to dissolve the silicon dioxide to form solution of sodium silicate and the sodium fluoride crystals, wherein the concentration of the solution of the sodium hydroxide is 45 to 50 percent; c, centrifugally filtering the solution obtained by the step b, washing solid sodium fluoride, and drying the sodium fluoride to obtain a finished product of the sodium fluoride, wherein washing liquor obtained after the solid sodium fluoride is washed is used for preparing the solution of sodium carbonate; d, concentrating liquid separated by the step c, separating the precipitated sodium fluoride, and returning the solid sodium fluoride separated out to the step a; and e, concentrating the liquid sodium silicate obtained by the step b to obtain liquid sodium silicate having a standard density and a standard modulus. The method has the advantages of simple operation and control, low investment and high yield.

The present invention provides method of producing food grade white oil with hydrogenated tail oil. Hydrogenated tail oil as material is treated through one high pressure hydrogenating and refining process under proper condition to obtain the food grade white oil product. The hydrogenated tail oil is produced with vacuum gas oil, refined solvent oil or Fischer-Tropsch synthesized oil as material and through hydrocracking or hydrotreating process under the action of hydrogenating catalyst, and has pour point lower than -10deg.c.

The invention discloses a sewage treatment process and a special-purpose one-piece sewage treatment plant. The process comprises the following steps: 1) arrangement of a water inlet system: sewage input from an inlet pipe and pretreated by thick and fine gratings and a vortex-type grit chamber is sent into a biological reaction system; 2) arrangement of the biological reaction system: the biological reaction system is divided into an anoxic area, an anaerobic area, an aerobic area and a sedimentation area, and activated sludge in each area utilizes katabolism of microbes to converse organic matters into inorganic matters to realize nitrogen and phosphorus removal; 3) arrangement of the sedimentation basin: sludge and water in the treated sewage can be separated, so that the water outlet is clarified; and 4) arrangement of a disinfection tank: the treated water from the step 3) is disinfected to kill pathogenic organisms and then discharged through an outlet pipe. The invention also discloses a one-piece sewage treatment plant. The invention has the advantages of small land occupation, small investment, compact mechanism, low loss of a water head, low investment for the engineering project, optimized, stable and mature technology, good nitrogen and phosphorus removal effect and good organic pollutant removal effect.

The invention discloses a process method for refining austenitic manganese steel by blowing argon gas into a medium frequency induction furnace, comprising the following steps of: (1) designing and manufacturing a gas diffuser; (2) mounting the gas diffuser in the center of the bottom of the medium frequency induction furnace and connecting the medium frequency induction furnace with an argon gasblowing system; (3) when furnace charge is molten to form a about 1/3 molten pool, quickly melting at high power and starting to blow argon gas into the furnace from the gas diffuser at the bottom; (4) controlling the pressure and the flow rate for blowing the argon gas according to the capacity of molten steel so as to fully remove harmful gas and inclusion in the molten steel and homogenize thetemperature and components; (5) cutting off a power supply and cooling and continuously blowing the argon gas; and (6) measuring the temperature, tapping and casting. By blowing the argon gas to refine, gas and nonmetallic inclusion in the molten steel can be effectively removed, the desulfuration and the deoxidization can be achieved and the components and the temperature of the molten steel canbe homogenized. By using the method, the purified molten liquid can be molten, thereby improving the metallurgical quality of the molten steel.

The invention provides a tail gas utilization system of a rotary lime kiln, which uses tail gas of the rotary lime kiln as a drying medium to dry semi-coke, achieves the effects of waste gas utilization and energy consumption reduction, and reduces the damage rate and the probability of spontaneous combustion of the semi-coke. The system comprises a dust remover and a vertical dryer, wherein the semi-coke is arranged in the vertical dryer; and a tail gas emission pipe of the rotary lime kiln, the vertical dryer and the dust remover are connected in sequence. The invention simultaneously provides a tail gas utilization method of the rotary lime kiln, which comprises the steps that the tail gas of the rotary lime kiln is led into the vertical dryer and directly contact with the semi-coke in the vertical drier, so as to dry the semi-coke; and gas emitted by the vertical dryer is evacuated after dust of the gas is removed by the dust remover.

The invention discloses a roasting pretreatment process for extracting vanadium pentoxide from a high-carbon scherbinaite-containing coal mine and a vanadium pentoxide extracting method, which comprise the following steps that: the stone coal scherbinaite is used as raw materials, the raw materials are crushed and pressed into blocks and are dried, then, the materials are continuously put into a tunnel kiln capable of regulating the air volume and the pushing speed to be roasted, the temperature is controlled between 400 DEG C and 1000 DEG C in the roasting process, the roasting time lasts 7hto 40h, and the pretreatment process is completed after the roasting. The roasting products are crushed, and then, vanadium pentoxide products are obtained sequentially through leaching, neutralization, oxidization, impurity removal, enrichment, ammonium salt vanadium deposition and calcination. The process has the advantages that the application range is wide, the energy consumption is low, the heat value utilization is sufficient, the equipment investment is low, the environment pollution is little, and the like. The method is suitable for being applied to the vanadium pentoxide extraction from the high-carbon scherbinaite-containing coal mine.

The invention discloses a combined process for delayed coking and hydrotreating, which comprises the following steps that: a coking raw material is heated to enter a coking tower to react, oil gas escapes from the top of the coking tower, gas components and liquid components are separated, and the cycle ratio in a coking process is 0; and the liquid components are mixed with hydrogen to react in ahydrogenation reactor, then the obtained hydrogenated reaction effluent is distilled to obtain hydrogenated naphtha, hydrogenated diesel oil and hydrogenated wax oil, and the hydrogenated wax oil used as a high-quality raw material is fed into a catalytic cracking device or a hydrocracking device. By adopting the process flow of zero circulation of a coking device, the method provided by the invention furthest improves the yield of a liquid product, improves the processing depth of heavy oil, saves a coking fractionating tower, and achieves the aims of optimizing the flow and reducing the investment; and by adopting reasonable graduation of a hydrogenation catalyst, the method can furthest take account of the running period and the refining depth of each coking product fraction.

the invention discloses a direct steel-making method through electric furnace based on ferric oxide and smokeless coal powder, which comprises the following steps: first, adding 5-10% smokeless coal block or graphite coal block and 2-4% lime block and 80-90% ferric oxide and 8-10% smokeless coal powder in the electric furnace; blowing the composition of steam, air or oxygen and smokeless coal powder for 50-80 min; heating to 1650-1680 deg.c to prepare steel water; deoxidizing; second, adding smokeless coal block or graphite coal block and lime as well as ferric oxide in the electric furnace continuously; repeating step 1.

The invention provides a zero discharge treatment process of saline sewage produced by refining. The treating process comprises the steps that saline sewage produced by flue gas desulfurization is conveyed to an evaporation chamber after undergoing two-stage filtration and heat exchange, evaporated steam is mixed with fresh steam after being pressurized and the steam mixture enters the shell pass of a heater to be condensed and discharged; saline water in the tube pass of the heater is heated to be evaporated and crystallized in the heater, the steam enters a compressor and salt crystals are deposited in a salt leg at the bottom of the evaporation chamber and are swirled and centrifugally concentrated; salt crystal filter cakes are dried in a drying machine, moisture is volatilized and is discharged from the top of the drying machine, gases pass through a two-stage cyclone separator to separate salt solid particles and the salt solid particles are emptied by a drying draught fan, and the salt solid after dehydration and drying is packaged to prepare sodium sulfite or ammonium sulfate products. The process provided by the invention has the effects of overcoming the defects of the prior art, really achieving zero discharge treatment of sewage and producing sodium sulfite or ammonium sulfate with economic value and has the beneficial effects of high energy efficiency, low investment, short flow, small floor area, low failure rate and satisfaction of long period operation.

The invention discloses a manufacturing method of sorbitol and mannitol through cellulose, which is characterized by the following: placing cellulose in the water; adding catalyst to react to produce sorbitol and mannitol under 190-350 deg. c; coupling the hydrolyzed intermediate to hydrogenate; obtaining the product without adding inorganic acid; reducing investment; lengthening the lifetime of catalyst.

The invention discloses a method and apparatus for immobilizing cells to treat wastewater wherein abandoned mycelium is used as a carrying agent for co-immobilization of white-rot fungi and bacteria, the enzyme system in the bacterium group is employed for coupled catalytic degradation of heterocyclic compounds and phenol in the waste water at the presence of oxygen supply. The device includes a reactor with moving sieving board and an oxygen supplying device.