18 results about "Environmental protection" patented technology

The invention discloses industrial acidic sewage treatment equipment. The treatment equipment comprises a sewage filtering tank, a sewage neutralization tank, a sewage reaction tank and an impurity collection tank, wherein a filter screen is arranged in the sewage filtering tank, a brush roller is arranged at the upper part of the filter screen, and the brush roller is connected with a pushing mechanism. The brush roller can be pushed by the pushing mechanism to move in a moving groove, so impurities on the filter screen are removed and cleaned into the impurity collecting tank; sewage can bepumped into the sewage neutralization tank through a first pump, stirring blades are driven by a stirring motor to stir the sewage, and a chemical pumping cylinder can be driven by the stirring motorto work at the same time, so a chemical in a chemical tank is pumped into the sewage neutralization tank to be neutralized with the sewage; and the sewage can be pumped into the sewage reaction tank again for a reaction through the second pump. The equipment of the invention has the advantages of simplicity and convenience in sewage treatment, capability of ensuring that sewage meets neutralization requirements and capability of automatically cleaning and filtering impurities, and is mainly used for sewage treatment.

The invention relates to a solid waste-based baking-free environment-friendly hollow brick and a preparation method thereof, and belongs to the field of solid waste utilization environmental protection and the field of hollow bricks. Red mud, mineral powder, industrial by-product gypsum, fly ash, silica fume, aluminum ash, carbide slag, wastewater and other solid wastes and waste liquids are usedas main raw materials. The hollow brick comprises the raw materials in parts by mass: 35-50% of red mud, 30-45% of mineral powder, 10-20% of industrial by-product gypsum, 5-15% of a reinforcing agent,0.5-3% of a cementing agent and the balance of sewage or wastewater, wherein the reinforcing agent is prepared by mixing 15-23% of silica fume, 10-25% of aluminum ash, 20-30% of fly ash, 15-30% of carbide slag, 5-10% of zeolite powder and 5-15% of asphalt. Large-scale resource utilization of solid waste is achieved, the occupied area of the solid waste is reduced, environmental pollution is reduced, no natural mineral resources are consumed during preparation, multiple solid waste and waste liquid are used as main raw materials of the baking-free hollow brick, and the product has the advantages of high strength, low cost, environmental protection, energy conservation, simple and convenient process and easiness in popularization and application.

The invention discloses an integrated double-circulation oxidation ditch device for town sewage and a treatment method. The integrated double-circulation oxidation ditch device comprises an anaerobic zone, an anoxic zone, an aerobic zone and a secondary sedimentation tank which are communicated in sequence, the anoxic zone comprises a first anoxic zone and a second anoxic zone; the aerobic zone comprises a first aerobic zone and a second aerobic zone, and a reflux pump is arranged between the anoxic zone and the aerobic zone. The anaerobic zone, the anoxic zone and the aerobic zone are internally provided with submersible stirrers, and the anoxic zone and the aerobic zone are respectively provided with a partition wall and a guide wall to form circulation in each zone; and the synchronous denitrification and phosphorus removal effect of nitrate nitrogen is realized in the anoxic zone, so that the purposes of stably removing organic pollutants COD and removing nitrogen and phosphorus are achieved, the COD removal effect is improved, and the nitrification and denitrification nitrogen removal and phosphorus removal efficiency is improved. The integrated structure of the device has the characteristics of simple structure operation and low cost, and the investment and operation cost can be further reduced.

The invention discloses a biological safety type floor drain. The biological safety floor drain comprises a floor drain main body, a panel, a filtering mechanism and a cover plate; the outer side of the floor drain main body is fixed to ground cast-in-place concrete, and the lower end of the floor drain main body is connected with a lower water pipe; a round hole matched with the upper end of thefloor drain main body is formed in the middle of the panel, the round hole position of the panel is connected with the upper end of the floor drain main body, and the lower side face of the panel is connected with ground; and the filtering mechanism is arranged in the floor drain main body and is positioned on the lower side of an opening of the floor drain main body in height; and the cover platecovers the opening position of the floor drain main body. The biological safety floor drain has the beneficial effects that the cover plate, the filtering mechanism, the panel and the floor drain main body are adopted; the cover plate is sealed when not used at ordinary times so as to prevent odor from returning to a room; the filtering mechanism is used for collecting animal feces and dirt, andafter the animal feces and dirt are collected, the filtering mechanism is taken out so that the dirt can be poured out, and meanwhile the filtering mechanisms of different specifications can be replaced according to different animals so as to achieve the purpose of feces and dirt collection, in this way, the lower water pipe is prevented from being blocked, and the feces can be collected conveniently; and finally, the panel is used for being connected with the ground, so that firm and flat installation of the floor drain is guaranteed.

The invention discloses an expressway service area sewage treatment device and a treatment method thereof. The expressway service area sewage treatment device comprises a hydrolysis acidification tank, a 1# anoxic tank, a 1# aerobic tank, a 2# anoxic tank, a 2# aerobic tank, a biochemical sedimentation tank, a coagulation tank, a flocculation tank and a physicochemical sedimentation tank, wherein enzyme floating fillers are arranged in the hydrolysis acidification pool, the 1# anoxic pool and the 2# anoxic pool, and the special structural form of the fillers and the pool body structure enable sewage to be fully mixed without stirring; an enzyme floating filler is arranged in the 2# aerobic tank, and different treatment states are formed in the area by adjusting the aeration rate, so that the sewage treatment efficiency is improved; and suspended filler is arranged in the 1# aerobic tank, and the filling ratio can be adjusted according to the water quality condition, so that the device is suitable for various water quality changes. The system adapts to the characteristic of large change of water quality and water quantity in the expressway service area, and is simple and compact in structure, high in automation degree, flexible in operation mode adjustment, high in organic matter and total nitrogen removal efficiency and low in operation and maintenance cost.

The invention discloses environment-friendly impermeable composite bentonite, and belongs to the field of green chemistry and environmental protection. The composite bentonite is prepared from the following components in parts by mass: 1000-1200 parts of bentonite, 90-120 parts of sodium carbonate, 300-500 parts of a biodegradable polyester material, 50-100 parts of a cross-linking agent, 30-50 parts of a drying agent and 30-50 parts of a preservative; wherein the bentonite is granular bentonite; the biodegradable polyester material is one of poly (trimethylene carbonate), polycaprolactone andpolyvalerolactone; the cross-linking agent is N-hydroxymethyl acrylamide; the drying agent is at least one of bamboo charcoal and quartz sand; and the preservative is copper sulfate. By adding the biodegradable material and the cross-linking agent, the composite bentonite has good anti-seepage performance, can be biologically degraded, and has a wind indicator effect on the development of green chemistry.

The invention provides a method and structure for co-processing waste incineration fly ash underground in a mine. According to the method, anti-pollution and anti-seepage treatment of the mine is used as a first-stage pollution isolation barrier; a secondary dirt isolation barrier is formed through encapsulation treatment; and clay mortar in the treatment sealing layer is used as a third-stage dirt isolation barrier. According to the structure, an underground space of a mine serves as a fly ash disposal space, and a wall impermeable layer is arranged in the fly ash disposal space; a plurality of packaging box body stacks are placed in the fly ash disposal space, and each packaging box body stack is formed by stacking a plurality of packaging box bodies; the encapsulation box body comprises a box body, a chelating agent or a chemical agent fly ash mixture is contained in the box body, and the top of the box body is sealed through a cement mortar layer; a disposal sealing layer is arranged at the outlet position of the fly ash disposal space, and the fly ash disposal space among the multiple packaging box body stacks is filled with clay mortar. The problems that ground land resources are short and waste incineration fly ash cannot be disposed can be effectively relieved. And underground idle space formed after coal mining can be effectively utilized.

The invention discloses a method for removing algae pollutants in a water body by improving the self-flocculation capacity of algae. The method specifically comprises the following steps: (1) adding areagent, namely adding AM and AIBI into an algae-containing water body, dissolving AM and AIBI under stirring, and uniformly mixing all the components; (2) illumination: putting the reactor filled with the mixed aqueous solution under natural illumination for reaction, and then conducting standing treatment; and (3) standing treatment: conducting standing treatment on the water body, and carryingout solid-liquid separation to effectively settle algae and remove extracellular organic matters (EOM) secreted by the algae in the water body. According to the method, the sedimentation rate of algae is stabilized to be 95% or above, and the removal rate of algae extracellular organic matter difficult to remove is stabilized to be 90% or above; therefore, the method has the advantages of being high in removal efficiency and large in application potential.

The invention discloses a kitchen waste recycling system. The kitchen waste recycling system comprises a base, a rotating frame, waste recycling tanks, a smashing assembly and a dewatering assembly. The kitchen waste recycling system is simple in structure and reliable in operation, and kitchen waste can be effectively intercepted and prevented from entering an annular oil-water containing space in the storage, crushing and dehydration processes through the arrangement of crossed woven nets on the inner wall layers of lower tanks in the waste recycling tanks; and through the smashing assembly and the dewatering assembly, the kitchen waste in the waste recycling tank can be smashed and dewatered in sequence, and the dewatering effect is good. According to the kitchen waste recycling system, the multiple waste recycling tanks are arranged at the same time, kitchen waste stockpiling, kitchen waste smashing and kitchen waste further dehydration can be conducted in the multiple waste recycling tanks at the same time, and position transfer of the three waste recycling tanks and superposition of corresponding treatment steps are achieved through rotation of a rotating frame; and multiple functions are achieved, synchronous treatment of multiple batches of kitchen waste can be achieved, and the waste treatment efficiency is greatly improved.

The invention discloses a composite solid waste pavement base binder and a preparation method thereof, and belongs to the technical field of road engineering. The composite solid waste pavement base binder is prepared by mixing pretreated alkaline ardealite powder, fly ash, slag powder and cement. The industrial waste phosphogypsum slurry raw material is subjected to alkaline pretreatment to obtain the alkaline phosphogypsum powder, the alkaline phosphogypsum powder is mixed with the solid waste such as the fly ash and the slag and the cement, and the mixture is applied to a semi-rigid base material to be used as a gelling binder, so that an effective utilization way of the industrial waste residue material is provided, and the utilization rate of the industrial waste residue material is increased. Moreover, the resource utilization rate of industrial waste residue materials can be increased, and the problem of environmental pollution caused by stockpiling and discharging of industrial waste residues is solved. And the prepared pavement base binder can improve the strength of the pavement base, reduce the shrinkage cracking effect of the pavement base, reduce the cement consumption, reduce the cost, and achieve the purposes of recycling solid wastes, and being economical and environment-friendly.

The invention belongs to the technical field of water environment treatment, and in particular discloses a sludge concentration plant for water environment treatment. The sludge concentration plant comprises a supporting base. An outer tank is fixedly mounted above the supporting base. An inner tank is fixedly mounted in the outer tank. A centrifugal assembly is mounted in the inner tank. A lifting assembly is mounted on the outer side of the centrifugal assembly. The sludge concentration plant for water environment treatment is scientific and reasonable, and safe and convenient in use; a lifting motor rotates to drive a threaded rod to rotate, causing a threaded seat to move upwards while the threaded rod rotates; then, a lifting plate moves upwards under the action of the threaded seat,causing sludge precipitated on the lifting plate to move upwards inside the inner tank; thus, workers do not need to enter the inner tank to dispose sludge precipitated at the bottom end of the innertank, and manpower is saved; moreover, sludge concentrated on the threaded rod can be removed by using a sludge removing spiral plate, avoiding the sludge concentrated on the threaded rod from influencing normal lifting of the lifting plate and allowing for more smooth lifting of the lifting plate.

The invention provides distributed sewage treatment equipment applying biological agent and a treatment process thereof. The distributed sewage treatment equipment comprises a septic tank, a grating tank, a hydrolysis regulating tank, a biofilm reactor and a disinfection tank, domestic sewage enters the septic tank firstly, and the sewage in the septic tank is conveyed into the grating tank through a pipeline, wherein the grating tank is connected with a hydrolysis regulating tank through a pipeline, the hydrolysis regulating tank is connected with a bio-membrane reactor, the sewage treated bythe bio-membrane reactor is sent into a disinfection tank, and then the treated sewage is sent out through the discharge of the disinfection tank. Various fungus products are added in the domestic sewage treatment process, so that the biodegradability of water quality is improved, and the growth environment of microorganisms is improved,microbial species and biomass of the system are increased, and biochemical efficiency is improved,and the nitrification and denitrification capabilities of the system can be improved, and the ammonia nitrogen and total nitrogen removal efficiency is improved.

The invention provides a sewage treatment agent, a preparation method thereof and a method for treating sewage by using the sewage treatment agent, and the preparation method of the sewage treatment agent comprises the following steps: crushing pyroxene andesite porphyrite into fine powder with a particle size of 2 mm or less; and uniformly mixing and stirring the crushed pyroxene andesite porphyrite powder and sodium chloride powder according to a weight part ratio of 10:0.5 to 10:1 to obtain the sewage treatment agent product. In the preparation process of the sewage treatment agent, only pyroxene andesite porphyrite and sodium chloride need to be crushed and uniformly mixed, and compared with the prior art, the product is greatly increased in production speed. According to the scheme, only 0.5-1 ton of sodium chloride is needed for every 10 tons of pyroxene andesite porphyrite, the raw material cost of the product can be reduced to a large extent by reducing the use amount of the sodium chloride, and then the production cost of the product and the sewage treatment cost are reduced.

The invention provides ceramic membrane sewage treatment equipment and method based on domestication of active microorganisms. The equipment comprises a reaction tank which comprises a water inlet anda water outlet; a first membrane assembly, of which a ceramic membrane is communicated with a gas storage tank through a gas pipeline and is filled with microorganism culture gas in the gas storage tank, wherein a biological membrane layer is formed in an activated sludge environment, and the surface of the ceramic membrane of the first membrane assembly is covered with the biological membrane layer; and a second membrane assembly which is located at the downstream of the first membrane assembly, and the second membrane assembly is communicated with the water outlet through a water outlet pipeline. According to the invention, the problem of uncontrollable microbial population in the existing MBR technology is solved, and the problems of low water production rate and frequent replacement of the membrane assembly caused by easy pollution of suspended activated sludge to the membrane assembly in the existing MBR can be solved as the immobilized microorganisms are adopted to treat wastewater and have low sludge yield and good settling performance.