440results about How to "High volume load" patented technology

A metallic ink including a vehicle, a multiplicity of copper nanoparticles, and an alcohol. The conductive metallic ink may be deposited on a substrate by methods including inkjet printing and draw-down printing. The ink may be pre-cured and cured to form a conductor on the substrate.

The invention discloses a high-concentration organic wasted water and refuse leachate zero discharge treatment system, and belongs to the field of sewage treatment. The main structure of the high-concentration organic wasted water and refuse leachate zero discharge treatment system comprises a pretreatment system, an anaerobic system, a nitration and denitrification system, a tube-type ultrafiltration MBR (Meane Biological Reactor) system, a nanofiltration system, a gas-liquid contact type evaporation system, and the like, wherein the pretreatment system is connected with the anaerobic system through a pipeline; an anaerobic circulation pool inside the anaerobic system and a denitrification pool inside the nitration and denitrification system are parallelly fixed and connected; the nitration and denitrification system is connected with the tube-type ultrafiltration MBR system through the pipeline; the tube-type ultrafiltration MBR system is connected with the nanofiltration system through the pipeline; the nanofiltration system is connected with the gas-liquid contact type evaporation system through the pipeline; the tube-type ultrafiltration MBR system is connected with a residual sludge treatment system through the pipeline. The high-concentration organic wasted water and refuse leachate zero discharge treatment system disclosed by the invention is simple in treatment process, greatly increases volume loading, is easy to install and debug, shortened in treatment time and low in energy consumption; the treated second pollutent achieves a three-stage standard, so that the zero discharge of the pollutant is realized.

The invention discloses a single-stage whole process autotrophic denitrification sewage treatment device and a technique thereof. The device comprises a reactor, a water outlet pump, a stirrer, a separation membrane component and an aeration membrane component, wherein the separation membrane component is arranged at the central part inside the reactor; the aeration membrane component consists ofa membrane tube which is wound on the inner wall of the reactor; and an air inlet pipe is connected with the aeration membrane component, and a water inlet of a water outlet pump is connected with theseparation membrane component by a pipeline. The method mainly comprises: the dissolved oxygen is controlled to be about 0.5-1.0mg / L, and partial short-cut nitrification is carried out on ammonia nitrogen under the action of ammonia-oxidizing bacteria; and then, aeration is stopped, denitrification is completed by anaerobic ammonium oxidation, and clean outlet water can be obtained by membrane separation. The invention leads the aeration membrane and the separation membrane to be arranged inside the same reactor to form a membrane aeration separating reactor, thus coupling bubble-free aeration, membrane separation and biological degradation. By utilizing the characteristics of high efficiency and easy control of membrane aeration, the good short-cut nitrification of nitrogenous effluent can be realized.

The invention relates to a bioaugmentation treatment technology of the high ammonia nitrogen wastewater. The treatment technology is characterized in that under the condition that dissolved oxygen exists in the high ammonia nitrogen wastewater, an aerobic pool, an aerobic filter and a membrane pool are established, wherein by utilizing the metabolism of the aerobic microorganism, high concentration of organic substances are degraded, the organic substances with high molecular weight and energy are converted to substances with low molecular weight and energy; the aerobic pool adopts internal circulation and large-scale external circulation hydraulic agitation; and the aerobic filter is filled with novel fixed enzyme-floating filler and immobilized microorganism and microporous aeration and jet aeration are combined for aeration, thus the flow pattern of the nitrification filter is improved. Compared with the prior art, the system of the invention has high sludge concentration and the corresponding volume loading is also high, thus the floor space is small and the capital cost is low; the conversion rate and utilization rate of atmospheric oxygen is high, the effect of mass transfer is good, the anti-shock loading capability of the system is high, the effluent quality is stable; the operating cost is low; the density is increased relatively, the solid-liquid separating effect is good and the yield of excess sludge is low.

A treatment of coking sewage membrane biological reactor consists of pretreatment, biochemical treatment, after-treatment water recovery and utilization. Membrane biological reactor is set in anoxic biological pool, the reactor consists of oxygen biological pool and membrane pool. The process is carried out by mud and water separating for curtain micro-filter membrane or super-filter membrane substituting secondary settling basin and removing high-molecular lysate to decrease outfall COD. Its advantages include higher mud concentration and volume load, and floor-area saving. It can be used to recover and utilize production circulating water system and coked sewage zero displacement.

The invention relates to a method and a reactor for removing nitrate by combining the processes of membrane electrolysis, electrochemical reduction, hydrogen autotrophic denitrification, membrane separation and the like, which belong to the application field of a water treatment technique. Specifically, a hydrogen ion exchange membrane is used to separate the positive electrode and the negative electrode of an electrolytic bath so as to form a negative electrode chamber and a positive electrode chamber, and a hydrogen autotrophic denitrifying bacteria solution is added in the negative electrode chamber. The positive electrode end and the negative electrode end are applied with direct current, the bacteria in the negative electrode chamber use the hydrogen generated by the negative electrode to perform denitrification so as to remove the nitrate, and simultaneously, the yielding water performs ultrafiltration membrane separation to perform filtration, and the ultrafiltration membrane concentrate flows back into the negative electrode chamber to improve the biomass in the reactor. The positive electrode chamber is added with H2SO4 of which the concentration range is between 0.01 and 0.5 M, H3PO4 or an acid solution thereof prepared according to arbitrary ratio. The method has the advantages of high efficiency for nitrate removal, simple operation and small floor space.

The invention discloses a disposing method of high concentrated tobacco slice wastewater in the paper making processes through anaerobic aerobic granular sludge, which comprises the following steps: pre-processing concrete; pumping waste water into anaerobic complex reactor to get anaerobic degradation with sludge density at 30-40g / L, COD load at 12-18kg COD / m3.d and under 35-37 deg.c; adopting interval aerobic particle sludge method to get aerobic treatment; pumping water 1h with aeration of micropore aerated pipe at 8-16h; setting the density of density at 7-12g / L; making COD load at 1.2-1.5kg / (m3.d) . The invention can reach the first emission standard of nation.

A process for using sludge mixture to culture the granular sludge used for anaerobic ammoxidation reactor includes such steps as mixing the granular anaerobic sludge with active aerobic sludge, loading the mixture in flow-up anaerobic reactor, preparing simulative sewage, pumping it in said reactor from its bottom, and running for a certain time while controlling the flow speed, temp and pH value.

The invention discloses a method for treating wastewater of a fibre-board plant. The method is characterized by including the combination of technical skills of the following three parts: a pretreatment system, a biochemical treatment system and an aftertreatment system; wastewater from production is respectively led into a filter and a centrifuger; after being processed by the step of slag removal, the wastewater flows into a horizontal sedimentation tank, a pre-aeration regulation tank and an iron aeration tank or a vertical sedimentation tank and then is processed by dissolved air flotation; the discharged water is respectively pumped into a turn-back flow anaerobic tank with filter materials and an oxidation tank and then flows into an inclined-tube sedimentation tank to settle; and after suspended substances in the wastewater are removed by a filtration tank, the wastewater is discharged while reaching standards. The method has the advantages that the efficiency of removing the suspended substances is high, water is circularly and repeatedly used, water consumption is reduced, the discharge amount of the wastewater can be reduced by more than 300 tons each day, the occupation of land of equipment is low, the operation is simple, and the running cost is low. Extruded wood slag and sludge can be used as energy to be led into an energy centre to combust, secondary pollution is not caused, and the treated wastewater can meet the requirement of primary standard in the Integrated Wastewater Discharge Standard GB8978-1996.

The invention relates to a technology of treating coking wastewater by biomembrance process, belongs to the field of environmental protection and difficult degradable industrial wastewater treatment, is mainly used to treat coking wastewater, can also be used to treat high COD and high ammonia nitrogen industrial wastewater and can realize that COD can be removed effectively and denitrification can be carried out effectively. The reactors used by the invention comprise an anaerobic bacteria filter, an aerobic biological fluidized bed, an anoxic biofilter and a settling pond. The technology is that the pretreated coking wastewater flows through the anaerobic bacteria filter for hydrolysis acidification, the aerobic biological fluidized bed for oxidation, then the anoxic biofilter for filtration, the settling pond for removing suspended matter and the treated water generated in the settling pond is directly discharged and part of the treated water flows back to the anaerobic bacteria filter. The COD removal rate of effluent can be above 95%, and the other indexes can all reach the primary standard of the national standard (GB8978-1996) for effluent discharge. The treatment technology has higher hydraulic loading and resistance shocking and lower floor area.

The invention provides a novel inverted denitrogenation membrane bioreactor, which belongs to the water treatment equipment technical field. The invention is characterized in that the inverted denitrogenation membrane bioreactor consists of non-woven fabric padding, reaction vessels, an aeration device, a temperature control device and a membrane component. An anaerobic ammonium oxidation reaction vessel is a closed device with anaerobic ammonium oxidation bacterium adopting non-woven fabric for attachment growth; a nitrosification reaction vessel is an open device with effluent adopting membrane effluent. Non-woven fabric which has a larger extent of porosity (the aperture is 3 micrometres) and a roughened surface is suitable for the attachment of the anaerobic ammonium oxidation bacterium which grow slowly, and has low cost and light weight; and the membrane component adopts a hollow fibrous membrane (the material is polypropylene, the average aperture is 0.1 micrometre, and the membrane area is 0.2 m<2>). The inverted denitrogenation membrane bioreactor has the advantages that: the attachment of microorganism is excellent, and stromata and gas-liquid-solid three-phase are mixed evenly, thereby easily achieving the required operating parameter, and saving cost and operating expense. The reactor is applicable to a process which performs anaerobic ammonium oxidation and nitrosification in succession, and is a novel biological denitrogenation reactor with wide market application prospect.

The invention discloses a culture method of municipal sewage nitrosification granule sludge, belonging to the field of restoration and regeneration of an aquatic environment. The invention aims to solve the problems of low carbon-nitrogen ratio, low denitrification efficiency and waste of abundant energy sources in the municipal sewage. The method comprises steps: anaerobic ammoxidation granule sludge is inoculated in an SBR (sequencing batch reactor); by using domestic sewage as raw water, the dissolved oxygen in the reactor is controlled at 4 mg / L or more, the stirring speed is controlled at 100 r / min, the temperature is controlled at 30 DEG C, the hydraulic retention time is controlled at 8 hours, and the sedimentation time is controlled at 5 minutes; the aerobic ammoxidation bacterium AOB and denitrifying bacterium can form granule sludge with anaerobic ammoxidation granule sludge as core; the shearing force generated by aeration can provide selection pressure for the formation of the granule sludge and promote the formation of the granule sludge; and the short sedimentation time is beneficial to elimination of nitrobacteria, thereby keeping the nitrosification stable. By using the method, the ammonia nitrogen removal ratio is up to 100%, and the nitrogen accumulation rate is higher than 95%.

The invention discloses a processing method and a processing apparatus of landfill leachate. The processing method comprises steps of pretreatment, anaerobic treatment, membrane biochemical treatment, nanofiltration treatment, and sludge treatment and the like. And the processing apparatus includes a primary settling tank (1) and a regulating tank (2). The regulating tank (2) is connected with an anaerobic reactor (3) which is connected with a denitrifying tank (4); the denitrifying tank (4) is communicated with a nitration tank (5), which is connected with ultrafiltration equipment (6); and the ultrafiltration equipment (6) is connected with nanofiltration equipment (7). According to the invention, COD of the high-density wastewater is degraded. After processing, high-density COD of 50,000 to 60,000mg / L is degraded to COD of about 50 mg / L, which reaches the standard of industrial reused water. Moreover, zero discharge of leachate is realized. Therefore, a new attempt to treat the high-density leachate is initiated and the domestic blank is filled.