54 results about "Aerobic treatment system" patented technology

The invention discloses a cultivation wastewater treatment system and a method of a large-scale pig farm, which mainly solves the problems of large floor area, low treatment efficiency and a low automation control degree in the prior art. The cultivation wastewater treatment system of the large-scale pig farm comprises a pretreatment system, an anaerobic treatment system, an aerobic treatment system and a deep treatment system that are sequentially connected, wherein the deep treatment system comprises an MBR (membrane bioreactor) reaction tank, an electrooxidation decoloration device and a clean water tank that are sequentially connected. The cultivation wastewater treatment method of the large-scale pig farm comprises the following steps of allowing wastewater of the pig farm to enter the pretreatment system, the anaerobic treatment system, the aerobic treatment system and then the deep treatment system, discharging treated sewage reaching standards, and recycling feces, methane and sludge generated in a treatment process.

The invention relates to an excess sludge wall-breaking and cell-dissolving method and device. Ultrasonic wave and various chemical agents are used commonly for wall breaking and cell dissolving and the method is as follows: sodium hydroxide and Tween 80 are added in excess sludge to be treated to perform ultrasonic treatment; the concentration of sodium hydroxide is 0.80-1.20kg.m<-3>, the concentration of Tween 80 is 1.0-1.5 kg.m<-3>, the ultrasonic effective treatment time is 3.0s-30s and the frequency of sound wave is 20kHz-28kHz; a tank ultrasonic cleaning machine is adopted, and the ultrasonic device is arranged in an inclined manner; and excess sludge is pumped by a sludge pump from the upper end of the tank ultrasonic cleaning machine, excess sludge enters through a feed hopper, flows through the ultrasonic device under the action of the gravity, passes through a plate mesh fluid distributor, flows out of a lower discharge hole naturally and enters a subsequent sludge digestion system or sludge aerobic treatment system. By adopting the thin-layer and short-time ultrasonic treatment with high energy density, the wall-breaking and cell-dissolving rate and efficiency of sludge can be increased and the equipment cost can be saved; and the effective retention time of excess sludge in the ultrasonic sound field is shorter, thus the daily treatment scale of the ultrasonic device can be increased.

The invention discloses high-concentration pharmaceutical wastewater treatment equipment and a technology with intensified treatment of functional bacteria, and belongs to the technical field of wastewater treatment. The treatment equipment comprises a physicochemical treatment system, an anaerobic treatment system and an aerobic treatment system. The treatment technology includes the following steps of physiochemical treatment, anaerobic treatment, high-load aerobic treatment, first-section A/O treatment and second-section A/O treatment. A physiochemical method and a biochemical method are used in combination, and due to the fact that the combined process of high-load aerobic treatment plug two-section A/O treatment combined technology is selected, the removable efficiency of pollutants is improved, and it is ensured that effluent quality reaches the discharging standard. Through the combined technology of the physiochemical method and the biochemical method, it can be ensured that the effluent quality of high-concentration integrated pharmaceutical wastewater reaches the standard.

The invention discloses a domestic sewage treatment process which saves water, is good in treatment effect and meets the discharge standard. The treatment process includes the following steps that 1,pretreatment is conducted, wherein domestic sewage is intercepted by a structure with grids and automatically flows into an adjustment pool; 2, biochemical treatment is conducted, wherein sewage adjusted by the adjustment pool is sequentially sent to an anaerobic pool and an aerobic pool through a lift pump for biochemical treatment; 3, precipitation treatment is conducted, wherein sewage treatedby the aerobic pool enters a secondary sedimentation pool for precipitation treatment; 4, disinfection treatment, wherein the sedimentation pool discharge water to a disinfection pool for disinfection, and various indexes of sewage obtained after disinfection meet the standard. According to the domestic sewage treatment process, the arrangement of the adjustment pool can balance the water amount and the water quality, and continuous operation of follow-up treatment units is ensured. Through the combination of the characteristics of domestic sewage, anaerobic treatment and aerobic treatment arecombined for biochemical treatment, a large part of organic matter in sewage can be treated, and the purification effect is good.

The invention discloses a kitchen waste recycling aerobic treatment system device, and particularly relates to the field of kitchen waste recycling. The kitchen waste recycling aerobic treatment system device comprises a waste treatment site and a treatment system device, the treatment system device is provided with a kitchen waste transport vehicle and a storage bin, and one side of the storage bin is provided with a manual sorting platform; and a first spiral conveyor is arranged between the storage bin and the manual sorting platform. Through transmission of a spiral reducing dehydration extruder, kitchen waste is subjected to crushing, spirally-reduced extrusion and dehydration, discharged oily water enters a full-automatic oil separator to be subjected to oil-water separation, solid residues are conveyed to a biochemical treatment machine through a second spiral conveying device to be subjected to high-temperature aerobic fermentation treatment, and before treatment, the salinity,grease and pH value of the kitchen waste do not need to be adjusted. The harmless requirement of kitchen waste treatment can be met, a treated degradation product can be directly changed into nutrient soil or deeply processed into organic fertilizer, and waste oil can be separated from the discharged wastewater or reprocessed into biodiesel.

The invention provides a system and a method for treating and recycling methanol aromatization wastewater and belongs to a wastewater treatment method of a chemical process. After the methanol aromatization wastewater is subjected to phase separation by use of a gas-liquid-liquid three-phase separator, the wastewater is orderly treated by a particle removing device, a wastewater gas stripping device, a gravity oil removing device and an air floatation device so that petroleum materials in the wastewater can be removed, next, the wastewater is homogenized and then treated by an anaerobic treatment system and an aerobic treatment system so that organic matters in the wastewater can be further removed, and then the wastewater is flocculently precipitated and filtered so that the wastewater can be up to the reuse standard. The method is capable of effectively recycling most wastewater and reducing the usage amount of fresh water; compared with the conventional process, the inventory is reduced by more than 50% in the whole wastewater treatment process, and the wastewater treatment cost is low.

The invention discloses a device for treating production wastewater of a jujube processing industry and a treatment process thereof. The device comprises a hydrolysis adjusting tank (2) and an upflow anaerobic sludge blanket (UASB) reactor (8) which is connected with the hydrolysis adjusting tank (2) through sewage conduits, the UASB reactor (8) is connected with an intermediate tank (12) through the sewage conduits, the intermediate tank (12) is connected with a sequencing batch reactor (SBR) (15) through the sewage conduits, and the SBR (15) is connected with a clean water tank (18) through the sewage conduits. According to the device for treating the production wastewater of the jujube processing industry and the treatment process thereof, a system which is economical, practical, and specifically used for production wastewater treatment of the jujube processing industry is provided, an anaerobic treatment system and an aerobic treatment system are combined, pollutions of sewage water to the environment are reduced, a design for the sewage treatment system utilizes a one-time lifting, an automatic flow is achieved among various follow-up treatment units, settings of a dynamical power system are small, and operating costs of the sewage treatment system are reduced.

The invention belongs to the technical field of waste gas treatment, and in particular relates to a waste gas deodorization device. Odorous gas collected by an odorous gas collection system passes through a waste gas draught fan to reach a gas inlet air pipe located between a first biological filtering device and a liquid collection groove, and then enters a tower body; the odorous gas is raised upward and passes through the first biological filtering device to reach a chamber formed between the first biological filtering device and a second biological filtering device; the odorous gas is deodorized through activated sludge water mist sprayed out by a first activated sludge spraying device; then the residual odorous gas is raised upward and enters a chamber formed between a spraying pump and the second biological filtering device; the spraying pump, a recycled water spraying device and a second activated sludge spraying device are used for spraying out water mist, high-alkalinity secondary sedimentation recycled water mist and activated sludge water mist respectively to carry out deodorization on the odorous gas; the odorous gas is treated to obtain purified gas which is dischargedthrough an exhausting opening. A solution obtained at the bottom of the tower body reaches an overflowing groove through a communication hole, and the solution in the overflowing groove passes through an overflowing pipe to reach an aerobic treatment system and then is treated.

The invention relates to a purification tank using a three-dimensional electrolysis and AAO process to treat decentralized sewage. The purification tank comprises a tank body, a water inlet pipe, a water outlet pipe and four partitions and is characterized in that the four partitions separates the inner cavity of the tank body into five cells; a filter tank, a settling tank and a stirring cavity are arranged in the first cell, and the sewage is subjected to anaerobic and anoxic treatment in the first cell and the second cell; the sewage is subjected to aerobic treatment in the third cell and the fourth cell; a three-dimensional electrolysis plate for further removing the phosphorus of the sewage is arranged in the fifth cell. The purification tank has the advantages that anaerobic-anoxic-aerobic treatment and electrolysis phosphorus removing of the sewage are achieved, the nitrogen and phosphorus removal of the decentralized sewage in the rural area is benefited, the stirring and reflux in the sewage treatment process do not consume energy, the phosphorus content in the sewage is further lowered by the final three-dimensional electrolytic treatment, and an effective treatment process and equipment is provided for the treatment of the decentralized sewage in the rural area.

The invention provides an organic pigment wastewater treatment technology. The technology comprises the following steps that organic pigment wastewater is collected to a grit chamber through a workshop, and liquid supernatant flows into a first coagulating-reaction system; a coagulant and a flocculant are added into the wastewater in the first coagulating-reaction system, and liquid supernatant flows into an aerobic treatment system; liquid supernatant generated at the bottom of the aerobic treatment system flows into a second coagulating-reaction system; a coagulant and a flocculant are addedinto wastewater in the second coagulating-reaction system, and liquid supernatant flows into a Fenton reaction pond; a Fenton reagent is added into a Fenton reaction system, after the reaction is finished, a flocculant is added into the wastewater, and liquid supernatant is discharged after reaching the standard. According to the organic pigment wastewater treatment technology, the technical routes of a physicochemical pretreatment technology, a biological-method main treatment technology and a Fenton advanced oxidation deep treatment technology are adopted, most COD and chroma in the wastewater can be removed, the quality of the discharged water is stable, the temperature application range is wide, the treatment cost is low, and it is ensured that the quality of the treated discharged water reaches the primary standard of the integrated wastewater discharge standard.

A pressure-actuated disinfectant dispenser and method for treating wastewater in an aerobic treatment system. The dispenser includes a reservoir for holding a disinfectant supply and a dosage container for holding a dosage of disinfectant. The container is positioned within the reservoir and has a flow-regulated path for fluid communication from the reservoir into the container. The invention also includes actuation means for increasing the pressure within the dosage container to force disinfectant therefrom, and a discharge assembly for discharging fluid from the dosage container into said storage tank.

The invention discloses a rural sewage treatment method. The method comprises the steps of entrapment, sand setting, regulation, denitrification, aerobic treatment, precipitation, filtration and inspection. Through combination of a biological rotating disc and a constructed wetland, activated sludge treatment is conducted on wastewater through an aerobiotic tank of the biological rotating disc so that BOD and COD can be removed, water is further purified under the combined action of filtration of a filter layer of the constructed wetland, plant purification and soil adsorption, and up-to-standard discharge of water is guaranteed. According to the method, equipment construction cost is low and can be accepted by peasant households easily, treatment of domestic sewage of rural areas characterized in residence dispersal is realized, and environment pollution caused by domestic sewage is avoided; treatment effect is good, energy consumption is low, maintenance and using are convenient, and long-term use is possible.

The invention discloses a domestic sewage treatment system comprising an anaerobic treatment system, an aerobic treatment system, a precipitation system, a disinfection system, a sludge storage systemand a power distribution room; the anaerobic treatment system is additionally provided with a filler baffle plate and a rotary filler box, so that the contact time and area of domestic sewage and filler are increased, and the starting time is shortened; an underflow stirrer is additionally arranged, so that the problems of short flow, dead corner and the like are reduced; the volumes of compartments of a reactor are different, and the degradation efficiency is improved by utilizing the difference of microbial communities; according to the aerobic treatment system, a flow baffle is additionally arranged, the dissolved oxygen amount is increased in a mechanical mode, and the operation cost is saved; the different-wave baffle plate is utilized, so that the inflow retention time is prolonged,the surface of the baffle plate is rough, a film is easy to form on the baffle plate, and the treatment efficiency is improved; by adding a modified combined suspended filler, the film culturing efficiency of the filler is improved. The invention also discloses a method for treating domestic sewage by using the domestic sewage treatment system, biochemical treatment is carried out in the whole process, no chemical is added, and secondary pollution is reduced.

The invention discloses a method for predicting the exposure level of chemicals of an anaerobic-anoxia-aerobic wastewater treatment system (shortened as STP(A2/O)). An STP(A2/O) concept model is built according to co-existence relationship of environmental mediums such as air, water, suspended solids and sludge and mass flow process of the chemicals by taking the anaerobic-anoxia-aerobic wastewater treatment system as a basic technique; by defaulting environmental exposure scene parameters, the exposure level can be predicted by just inputting the molecular weight of the chemicals, the steam pressure (P), the water solubility (S), the anaerobic organism degradation rate (k10), the anoxia organism degradation rate (k12), the aerobic organism degradation rate (k5), the adsorption coefficient (Koc) and the emission load (ERC). The prediction method is simple, feasible, few in actually-measured parameters and high in prediction accuracy and has a great signification for evaluating exposure risk of the chemicals.

The invention discloses an industrial inorganic sewage treatment system and belongs to the field of sewage treatment systems. The industrial inorganic sewage treatment system comprises a first filtering basin, an acid-base pond, an oxidation pond, a settling pond, a second filtering basin, a membrane filtering basin, an anaerobic pond, an aerobic pond, a wet land, a detection pond and an ultraviolet sterilization pond, all of which are connected in sequence. The second filtering basin is provided with a one-way channel leading to the oxidation pond. The aerobic pond is provided with a one-way channel leading to the anaerobic pond. The detection pond is provided with a one-way channel leading to the acid-base pond, a one-way channel leading to the membrane filtering basin, a one-way channel leading to the anaerobic pond and a one-way channel leading to the wet land. The industrial inorganic sewage treatment system has the advantages that arrangement is reasonable and effective, different kinds of sewage is pretreated, and therefore it is ensured that a good and stable treatment effect can still be guaranteed on the condition of emission of different pollutants.

The invention discloses an exposure level prediction method of organic chemicals of an anaerobic-aerobic treatment system of wastewater (STP(A/O) for short). The method comprises the following steps: by taking A/O biological treatment system of wastewater as a basic process, constructing a STP(A/O) concept model according to a coexisting relationship of gas, water, suspended particles and a sludge environment-friendly medium and a mass flow process of the chemicals; and by defaulting an environmental exposure scene parameter, just inputting the molecular weights of the chemicals, a vapor pressure (P), water solubility (S), anaerobic biodegradation rate (k10), aerobic biodegradation rate (k5), adsorption coefficient (Koc) and discharge (ERC) to predict the exposure level. The prediction method is simple and feasible, fewer in measured parameters and relatively high in predicting accuracy, and has important meaning for evaluating exposure risk of the chemical.

The invention relates to an environment-friendly wastewater treatment process, in particular to a starch alcohol wastewater treatment system and method. The method comprises the steps of pretreatment, primary anaerobic treatment, secondary anaerobic treatment, secondary aerobic treatment, sludge treatment and the like. A CSTR, a UASB anaerobic reactor and an SBR aerobic treatment system are combined for treating the starch wastewater; meanwhile, the recovery of waste gas and waste slag in the wastewater treatment process is enhanced; the resource utilization rate is enhanced; the goal of further enhancing the waste slag and waste gas utilization in the wastewater treatment process is achieved; the cost is reduced; meanwhile, the operation efficiency of the equipment is ensured; the goal of discharging the wastewater in a standard reaching way is achieved.

The invention provides a pig breeding wastewater treatment system and an application method. The pig breeding wastewater treatment system comprises a pretreatment system, an anaerobic treatment system, an aerobic treatment system, an advanced treatment system, a sludge treatment system, an industrial control computer and a full-automatic control system, wherein the industrial control computer is used for controlling power equipment in each treatment system to operate; the pretreatment system, the anaerobic treatment system, the aerobic treatment system and the deep treatment system are sequentially connected, the sludge treatment system is simultaneously connected with the pretreatment system and the aerobic treatment system, and the industrial control computer and the full-automatic control system are respectively connected with the pretreatment system, the anaerobic treatment system, the aerobic treatment system, the deep treatment system and the sludge treatment system. According to the pig breeding wastewater treatment system and the application method provided by the invention, the problems that the existing pig breeding wastewater is difficult to treat, the treatment process is immature, the effluent standard reaching is unstable, the process operation cost is high and the like are solved.