59results about How to "Improve pollution interception effect" patented technology

The invention discloses a preparation method for a bentonite anti-seepage material and relates to a preparation method of an anti-seepage material. The preparation method comprises the following preparation steps of: weighing metric ammonium persulfate, and dissolving the metric ammonium persulfate into distilled water to prepare a 10% ammonium persulfate solution for later use; weighing modified polyacrylamide and N, N'-methylene-bisacrylamide as a cross-linking agent in proportion, placing the weighed components into a beaker of 250mL, then adding tetramethylethylenediamine and uniformly stirring the mixture; weighing natural sodium bentonite, adding the natural sodium bentonite into the beaker by keeping stirring to ensure that the natural sodium bentonite is uniformly mixed with the mixture; adding the prepared 10% ammonium persulfate solution into the beaker, and stirring for 3-5min; and standing still the mixture, and shaping and drying according to a required shape immediately to prepare the bentonite anti-seepage material product. The bentonite anti-seepage material prepared by adopting the preparation method has the advantages of simple preparation process, easy obtaining and low price of raw materials, convenience for processing and better performance for resisting seepage and adsorbing and removing pollutants.

An embodiment of the invention provides a filter backwashing method and a filter. The method is applied to the filter. The filter comprises a tank, a water outlet pipe connected to the tank, a water outlet valve arranged on the water outlet pipe, a backwashing water inlet pipe, a backwashing water inlet valve arranged on the backwashing water inlet pipe, a backwashing valve connected to the backwashing water inlet pipe, a water suction pump connected to the backwashing valve, a water inlet pipe, a water inlet valve arranged on the water inlet pipe, a water discharge pipe, a water discharge valve arranged on the water discharge pipe, an air inlet pipe with one end connected to the tank and the other end connected to an air blower, as well as an air washing valve arranged on the air inlet pipe. The method comprises steps as follows: controlling the backwashing water inlet valve in an open state; controlling the air blower in an open state to input compressed air into the tank through the air inlet pipe; and guiding water into the tank through the water inlet pipe, and further performing backwashing on a filter material in the tank in an air and water mixed manner.

The invention relates to a sewage-intercepting optimization system of an interception type water draining pump station additionally provided with a porous water-permeating partitioning wall. The sewage-intercepting optimization system comprises a water collecting pool with an opened top part, an upstream combined pipeline or a rainwater feeding pipe communicated with the water collecting pool, water feeding channels arranged in the water collecting pool in sequence along the water flowing direction, a water feeding grating, porous water-permeating partitioning wallsand a flow guiding wall,wherein the water feeding grating, the porous water-permeating partitioning wall and the flow guiding wall enclose into an embedded type sewage intercepting pool commonly, and the embedded type sewage intercepting pool is opened at the top part, is independent from the water collecting pool and partitions the water collecting pool into two independent branched water collecting pools which are internally and respectively provided with a rainwater pump and a water draining pipe network communicated with the rainwater pump; and the embedded type sewage intercepting pool is internally provided with a sewage intercepting pump and a sewage draining pipe network communicated with the sewage intercepting pump. Compared with the prior art, the sewage-intercepting optimization system is applicable to high-efficiency sewage-intercepting modification of built combined sewage treatment and drainage pump stations and rainwater pump stations mixed with separated sewage treatment and drainage systems.

The invention relates to a filter material used in sewage treatment and particularly relates to a composite filter material prepared by blending melt-blown polypropylene with modified organic bentonite and used for sewage treatment and a preparation method thereof. The filter material is prepared from following raw materials, by weight: 2-3 parts of calcium alginate, 30-34 parts of polypropylene, 1-2 parts of a titanate coupling agent, 0.2-0.4 parts of polyacrylamide, 20-24 parts of the organic bentonite in 200-300 meshes, 2-3 parts of polyether modified silicone, 2-3 parts of nano aluminum hydroxide, 0.1-0.2 parts of nano copper-zinc alloy powder, 0.8-1 part of lauryl sodium sulfate, and 35-45 parts of water. In the invention, the modified organic bentonite-based filter material micro powder is supported onto the modified polypropylene master batch melt-blown filaments to form a stereoscopic network structure. The filter material is excellent in mechanical performance, is not liable to break in use, is higher in purification efficiency, is stable in performance and is flexible in shape.

The porous filming material for water treatment consists of clay 30-60 wt%, loess 30-60 wt%, kaolin 5-20 wt% and pore creating material 5-20 wt%. The product of the present invention is spherical haydite, and has high mechanical strength, high erosion resistance, high wear resistance and stable physical and chemical properties as well as rich pores, rough surface, great specific surface area, long service life, high adsorption performance, etc. It has high dirt intercepting capacity and high filming efficiency, is suitable for the growth and propagation of microbe and may be used to eliminate organic matter, suspension, nitride, phosphate, etc from water.

The invention discloses an ecological treatment method of a black and foul water body and relates to the technical field of environmental treatment. The method particularly comprises the following steps: S1, inlet sewage interception: checking and sealing drain outlets at both banks of a watercourse, constructing a plurality of reservoirs according to the length of the watercourse, constructing orperfecting a sewage interception pipe network to effectively intercept sewage flowing into a river and reduce pollution of the sewage to the river from the source, introducing the sewage from the drain outlets into the reservoir through pipelines, thoroughly treating the sewage using an intelligent quick sewage treatment device together with a specific water clearer and alga removal and deodorization agent, adding thoroughly treated water into the river. The method is good in sewage interception effect; and after disperse treatment, the sewage from an external source does not flow into the river any longer. According to the ecological treatment method of the black and foul water body, solid pollutants in the black and foul water body are removed preliminarily in a manual or mechanical salvage manner; the method is strong in environmental suitability, low in cost, good in effect, environmentally friendly, pollution-free, and simple to prepare, takes effect quickly, has no and has positive engineering practicability.

The invention discloses a sewage intercepting hanging basket and a sewage discharging device with a sewage intercepting hanging basket. The dirt intercepting basket comprises a first hanging basket, which is formed as a cylinder with an opening at one end and a drainage hole at the other end and the side respectively. An overflow port is provided on a side of the cylinder adjacent to the opening for overflowing excess sewage; the second hanging basket is formed in a disc shape with a filter mesh on the bottom surface, and the second hanging basket is disposed below the first hanging basket andspaced apart from the first hanging basket to filter the sewage filtered by the first hanging basket. The sewage intercepting basket is provided with coarse and fine two-stage interception, and the intercepting effect is better, which can achieve the purpose of preventing and controlling urban black and odorous water bodies and reducing the clogging of rainwater pipelines; excessive rainwater canbe discharged through the overflow, and the overflow capacity of the overflow is not less than the ability of the rainwater to survive with high drainage safety; the simple sewage intercepting basketis characterized by simple structure, which can prevent clogging with high reliability; the sewage intercepting basket is suitable for the environmentally-friendly gully in the newly built area and the environmentally-friendly gully renovation in the built-up area.

The invention relates to a water discharge kerb and a road comprising the water discharge kerb. The water discharge kerb comprises a kerb body, wherein a water discharge passage extending to the otherside wall body from the side wall body of the pavement is formed on the kerb body; a coarse filtering unit and a fine filtering unit are sequentially arranged on the water discharge passage in the water discharge direction; a flow passing buffer groove passage is defined between the coarse filtering unit and the fine filtering unit; through the matching of the coarse filtering unit, the flow passing buffer groove passage and the fine filtering unit, the dirt interception capability of the kerb can be effectively improved; when the kerb is applied to enterprise inside roads in iron and steel industries and the like, the proportion of sludge, sundries, oil stain and the like entering a factory water discharge system can be reduced; the cleaning frequency of the water discharge system can beeffectively reduced; the water discharge efficiency is improved; the water discharge smoothness in the factory can be ensured.

The invention discloses a solid garbage intercepting and concentrating device for a river. The solid garbage intercepting and concentrating device comprises stand columns arranged on both sides of the river respectively. The stand columns are provided with a synchronous rotating assembly. The synchronous rotating assembly comprises an external winding belt rotating around the two stand columns. An internal winding belt is arranged in the external winding belt. The external winding belt is provided with penetrating holes in the rotating direction. The internal winding belt is provided with penetrating components corresponding to the penetrating holes. The penetrating components are provided with intercepting components for bonding garbage. Garbage cleaning components are arranged, and a river surface flow diversion layer is arranged between the stand columns. Compared with the prior art, according to the solid garbage intercepting and concentrating device for the river, the internal winding belt is inserted into the penetrating holes through the penetrating components to drive the external winding belt to rotate synchronously, the garbage bonded by the intercepting components is cleared and processed in a concentrated mode, the river surface flow diversion layer intercepts the garbage floating on the river surface, a certain clearing function is played on various garbage in the river, and the water quality is purified.

The invention relates to a homogeneous particle filter material reverse granularity rapid filter which is communicated with a to-be-filtered water inlet pipe and a backwashing water inlet pipe, the rapid filter is sequentially provided with a water distribution chamber, a water distribution system, an under layer, a particle filter material layer, a backwashing water trough and a filtered water collection trough from bottom to top, wherein one end of the filtered water collection trough is provided with a clear water channel, the filtered water collection trough is communicated with the clear water channel, a drainage channel is arranged under the clear water channel, the backwashing water trough is communicated with the drainage channel, and the to-be-filtered water inlet pipe and the backwashing water inlet pipe are communicated with the water distribution chamber to ensure that to-be-filtered water enters from the bottom of the filter; and the filtering material layer thickens from top to bottom and has little resistance and more intercepted suspended matters. Compared with the downward flow positive granularity filter on the same scale, the rapid filter has the advantages of being capable of improving water yield by about 40 percent and saving investment by 30-40 percent, correspondingly reducing volume and obtaining remarkable economic benefit.

The invention provides an intelligent ecological floating island with a pollutant intercepting function, and belongs to the field of ecological restoration, wherein the intelligent ecological floatingisland comprises a control assembly and a pollutant intercepting and filtering assembly, the control assembly is arranged at the upper end of the pollutant intercepting and filtering assembly and drives the pollutant intercepting and filtering assembly to move and be fixed in a water body; the pollutant intercepting and filtering assembly comprises a buoyancy plate, a filtering plate and a pollution-resistant plant, the pollution-resistant plant is arranged at the upper end of the filtering plate, the filtering plate is detachably arranged below the buoyancy plate, and the filtering plate isof a grid structure and is used for intercepting and gathering floating objects in a water body. According to the invention, black and odorous water floating garbage and underwater large-particle pollutants are effectively collected, and the pollutant interception effect is remarkable; and the garbage and pollutants are uniformly and intensively stored underwater, so that the landscape effect of ariverway and a water body is remarkably improved.

The invention is applicable to the technical field of artificial river channels, and provides a river channel ecological protection slope and a construction method thereof. The river channel ecological protection slope comprises a slope, wherein hollow prefabricated parts are laid on the slope; through holes are formed in the side surfaces of the hollow prefabricated parts; the through holes of the two connected hollow prefabricated parts communicate with each other; the hollow prefabricated parts are filled with planting bases; and the planting bases comprise at least soil, ceramsite, biocharand plant fibers. According to the river channel ecological protection slope and the construction method thereof, the through holes are formed in the side surfaces of the hollow prefabricated parts,so that the through holes of the two connected hollow prefabricated parts communicate with each other, and the problem that plants are in a flood disaster due to water accumulation in the hollow prefabricated parts can be effectively solved; the hollow prefabricated parts are filled with the ceramsite, so that the air permeability of the soil can be effectively improved, and the growth level of the plants can be improved; and the planting bases are filled with the biochar and the plant fibers, so that pollutants which are flushed into a river channel by rainwater and surface runoff can be adsorbed, and the purification capacity of a water body can be effectively improved. By utilizing the river channel ecological protection slope and the construction method thereof, a river channel ecological system can be repaired and improved.

A filter with a circulation filtering layer is characterized in that a water distributing pond arranged at the upper portion of a shell is connected with a raw water pipe, a water distributing hole plate at the bottom of the water distributing pond and the upper end of a sealing cover are fixed, and the lower end of the sealing cover is in contact with the upper layer of the circulation filtering layer; a driving shaft and three driven shafts are arranged in a rectangle mode on the two side walls of the shell, the driving shaft is fixedly connected with a power device, the two ends of the driving shaft are fixedly connected with a driving chain wheel, and the two ends of each driven shaft are fixedly connected with a driven chain wheel; a supporting chain fixed by the circulation filtering layer is connected to the driving chain wheel and the driven chain wheel in a wrapped mode, the upper layer of the circulation filtering layer strides a clear water collecting pond, and the lower layer of the circulation filtering layer is arranged in a washing pond; the circulation filtering layer surrounds the clear water collecting pond, and the clear water collecting pond is connected with a clear water outlet pipe through water draining holes in the side walls; a plurality of washing sprayers arranged on the lower part of the clear water collecting pond are connected with a washing pump and a clear water header pipe through a washing pipeline. The filter has the advantages of being high in intercepting capability, high in filtering precision, good in outlet water quality and wide in application range.

The invention discloses a preparation method of an iron-carbon catalyst for Fenton wastewater treatment. The iron-carbon catalyst is prepared from 55-70 wt% of iron oxide powder, 10-15 wt% of fly ash,2-5 wt% of clay, 3-5 wt% of Pingxiang Changfeng porcelain clay powder, 3-5 wt% of natural manganese sands, 10-20 wt% of zinc oxide waste residue powder and 0.3-1 wt% of potassium ferrate through thesteps of ball milling, granulation, drying and high-temperature sintering. Compared with catalysts in the prior art, the iron-carbon microelectrolysis catalyst in the invention has the advantages of good treatment effect, low production cost, convenience in operation and maintenance, wide application range, low power and resource consumption, fast speed and stable effect in a treatment reaction, no secondary pollution, improvement of the biodegradability of wastewater, and facilitation of the sedimentation and biofilm colonization of sludge; and the preparation method can improve the strength,the specific surface area and the porosity of the catalyst and improve the treatment effect and the service life of the catalyst in order to facilitate backwashing.

The invention discloses cut-off equipment for solid waste in a river. The cut-off equipment comprises two pillars respectively arranged at both sides of the river; a synchronous rotation assembly is arranged on the two pillars; the synchronous rotation assembly comprises an external winding belt rotating around the two pillars; an internal winding belt is arranged in the external winding belt; a perforation is formed in the rotation direction of the external winding belt; the internal winding belt is provided with a piercing component corresponding to the perforation; the piercing component is provided with a cut-off component for adhering the waste; a waste clearing component is arranged. Compared with the prior art, the cut-off equipment for the solid waste in the river, disclosed by the invention, has the advantages that the external winding belt is driven by the internal winding belt to rotate synchronously by inserting the piercing component into the perforation, and after being adhered by the cut-off component, the waste is cleared off for centralized disposal; the cut-off equipment had a certain clearing effect on various kinds of waste in the river, and is capable of purifying water quality.