70results about How to "The reduction effect is obvious" patented technology

The invention discloses a 'technique for conditioning sludge by using the synergic action of Fenton reagent and polyacrylamide', and mainly aims to overcome the defects in sludge dehydration conditioning of urban sewage treatment plants at present. The invention provides a sludge conditioning combined technical process which can effectively degrade organic substances, realize sludge reduction, effectively release combined water and cell internal water difficult to be dehydrated in the sludge and improve the dehydration performance of the sludge. In the technique, the oxidizing action of the Fenton reagent and the strong flocculation of CPAM (cationic polyacrylamide) are fully combined and used to enhance the dehydration performance of the sludge and improve the solid-liquid separation ratio in sludge dehydration. Through conditioning, the water content of the sludge after centrifugal dehydration is reduced from 87.7 percent to 79.3 percent, and the mud cake output is reduced from 0.218t/m<3> to 0.128t/m<3>.

The invention is named as 'a joint-conditioning dehydration method for sludge', belonging to the technical field of environmental engineering and sludge treatment. The joint-conditioning dehydration method comprises the following steps of: adding H202 and FeSO4 into the sludge (with pH being equal to 5) acidified by mineral acid, degrading organic matter by virtue of strong oxidation of a Fenton reagent, and dissolving and cracking microbial cells and extracellular polymeric substances in the sludge; adding a surfactant CTMAB (Cetyl Trimethyl Ammonium Bromide) into the sludge to reduce the surface tension of the sludge and change the surface characteristics of the sludge, and transforming a part of interstitial water into free water; and flocculating sludge particulates with disperse structure, small particle diameter and large specific surface area by virtue of flocculation action of polyacrylamide (CPAM) to the sludge particulates. After the sludge is subjected to joint conditioning of the Fenton reagent, the surfactant and the CPAM, the moisture content of the sludge after being centrifugally dewatered is reduced to 78.2% from 87.7%, and the output of mud cakes is reduced to 0.115t/m<3> from 0.218t/m<3>, therefore, the dehydration property of the sludge can be improved remarkably, the investment and operation costs are reduced effectively, and an ideal sludge reduction goal is reached.

The invention discloses a processing method for utilizing heavy metal to restore plant residues, which comprises cleaning and draining the plant residues after restoration, enabling granularity of debris to be between 2mm and 8mm after smashing, mixing plant debris and a fixing agent according to a proportion of mass ratio of 2-5:1, ashing for 4-6h under the condition of 400-800 DEG C, spraying gas generated by ashing, and mixing ash generated after ashing into corresponding metal ores to perform further smelting and recycling or use acid spray to purify heavy metal by-products. The processing method is large in processing quantity and remarkable in reduction, plant quality loss accounts for 85-98% of the total mass, and volatilization quantity of the heavy metal is reduced by 80-90%. The processing method is low in cost, reduces secondary pollution to the environment, and has good practical application prospects in the aspect of metal recycling.

The invention discloses a movable type method and device for treatment on desilting and dredging sludge of rivers and lakes. The method comprises the following steps: A, storing sludge inside a temporary cofferdam sludge storage pond which is constructed on the shore of a river or lake; B, hoisting a container in which a sludge dehydration system is integrally mounted to the side of the sludge storage pond; C, pumping sludge into a compartment type film filter press for filter-press dehydration in the sludge dehydration system from the sludge storage pond; D, squeezing by using a squeezing pump; E, transferring the sludge of which the water content is greatly reduced, for later recycling treatment. The device comprises the cofferdam sludge storage pond, the sludge dehydration system and the container for carrying the sludge dehydration system. By adopting the method and device, the water content of sludge can be reduced to be about 40%, then the sludge is transformed into solid without flowing, no pollution is caused in the transformation process, the transferring is flexible, the use is convenient, the circulation use efficiency of equipment is high, and later recycling treatment is facilitated.

The invention belongs to the technical field of design and manufacture of waveguide antennas, and in particular relates to a dual-polarized broadband flat panel array antenna feeding network. The feed network includes polarization separators, and the polarization separators form a basic array distribution of four rows and four columns; the vertical polarization unit includes a first vertical polarization power splitter, a second vertical polarization power splitter, a third a vertical polarization power divider and a fourth vertical polarization power divider; the horizontal polarization unit includes a first horizontal polarization power divider, a second horizontal polarization power divider, a third horizontal polarization power divider and a fourth horizontal polarization power divider Horizontal polarized power splitter; there is a waveguide arm between the two adjacent first vertical polarized power splitters on the second row and the third row for the two input ports of the fourth horizontal polarized power splitter to pass through The gap; the output port of the fourth horizontal polarization power splitter is located in the reserved area between the third row and the fourth row of polarization splitters. The invention has the advantages of compact structure, wide bandwidth and low profile, and can be used as a feed network for broadband dual-polarization antennas.

The present invention belongs to the fields of microorganisms and applications thereof, and specifically discloses a composite micro-organism agent based on bacillus subtilis BS1 and an application thereof. The bacillus subtilis is preserved in China Center for Type Culture Collection and has a preservation number of CCCCC NO:M 2019185. The composite micro-organism agent prepared from the bacillussubtilis strain and saccharomyces cerevisiae, bacillus megaterium and bacillus licheniformis can be used for manure composting of livestock and poultry. The composite micro-organism agent can increase composting temperature in compost, shortens time to reach a high temperature, conducts deodorization, fixes nitrogen, and has significant reduction effects on various antibiotic resistance genes andpathogenic micro-organism in the compost.

The invention discloses a low-RCS antenna, which comprises an artificial surface plasmon coupling medium and a feeding structure, the feeding structure comprises a monopole antenna and a ground plane,and the monopole antenna is arranged on the ground plane; the artificial surface plasmon coupling medium is arranged on the ground plane; and the artificial surface plasmon coupling medium comprisesa periodic metal cell array and a dielectric substrate, and the periodic metal cell array is arranged on the surface of the dielectric substrate. Thus, the low-RCS antenna provide by the embodiment ofthe present invention adjusts and controls the strong-weak dispersion region in the artificial surface plasmon dispersion curve, so that when the antenna is in the weak dispersion region, electromagnetic waves can be efficiently transmitted and radiated along the coupling medium; and when the antenna is in the strong dispersion region, the electromagnetic waves are strongly absorbed. The antennais simple in structure, adopts a printed circuit board technology to process, and is low in cost and easy to be conformal, and on the premise of ensuring the efficient receiving/transmitting performance, an RCS reduction effect is obvious, and a good RCS reduction effect is achieved even in a relatively large angular domain.

The invention provides a resourceful treatment method for penicillin fungi residues, wherein fungi residues produced during production of penicillin can be treated by adopting the steps of steam inactivation, enhanced pretreatment, mixing and blending, fungi residue blending, anaerobic co-digestion, concentrating and dewatering and the like. According to the invention, a treatment method low in energy consumption, high in efficiency and steady and reliable in effect is adopted, and drug residues in the penicillin fungi residues can be completely removed, thus realizing reduction and harmless treatment of the penicillin fungi residues.

The invention relates to a lake and river sludge dewatering treatment system; the discharging end of a drug diluting and adding machine is connected to a sludge inlet pipeline through a pipeline; the discharging end of the sludge inlet pipeline is connected to the charging end of a sludge conditioning tank; the discharging end of the sludge conditioning tank is connected to the charging end of a sludge storage tank through a pipeline; the discharging end of the sludge storage tank is connected to the charging end of a slurry pump through a pipeline; the discharging end of the slurry pump is connected to the charging end of a chamber type filter press through a pipeline; the discharging end of the chamber type filter press is connected to the charging end of a conveyer through a pipeline; and the air outlet of an air compressor is connected to the air inlet of the chamber type filter press. The sludge dewatering treatment system disclosed by the invention is high in automation degree, high in treatment capacity, good in dewatering effect, low in operation cost, obvious in sludge reducing effect and easy to realize resource utilization of sludge, and therefore, industrialization popularization can be realized.

The invention discloses a method for biological treatment of unavailable fresh tobacco leaves by utilizing spodoptera litura, and a material formula. According to the method disclosed by the invention, the unavailable fresh tobacco leaves are creatively utilized for appropriate treatment, then appropriate compatible components are added to prepare a semi-artificial feed for feeding the spodoptera litura till the the larval development stage is completed, then the unavailable fresh tobacco leaves are completely treated, output products are mature larvae and frass of the spodoptera litura, the mature larvae of the spodoptera litura can be used as a high-quality insect protein feed after drying, and the frass can be used as a high-quality organic fertilizer after aerobic composting. The method disclosed by the invention has the advantages that the treatment capacity of the unavailable fresh tobacco leaves is great, the treatment cost is low, the period is short, the treatment of the unavailable fresh tobacco leaves is complete, the reduction effect is obvious, and the production of waste residue, waste gas, waste liquid and other secondary pollution in treatment process is avoided; products after the treatment are insect protein powder and the frass organic fertilizer of the spodoptera litura, and the economic benefits of a treatment plant can be increased.

The invention discloses an H2S endogenesis cutting-down method and device of a quasi aerobic landfill. The device comprises a reactor shell, an adjusting tank, a recharge pump, a vertical gas guide and exhaust pipe, a plurality of vertical type recharge wells and a horizontal recharge net. A fine sand cover layer, a garbage layer, a gravel layer and a percolate layer are arranged in the shell; the vertical gas guide and exhaust pipe is arranged at the central position of the reactor shell and penetrates through the fine sand cover layer and the garbage layer; the vertical type recharge wells are arranged around the vertical gas guide and exhaust pipe, water outlets of the vertical type recharge wells extend to the positions with different heights in the garbage layer, and top inlets of the vertical type recharge wells are communicated with the adjusting tank through the recharge pump; the horizontal recharge net is arranged in the garbage layer and is communicated with the adjusting tank through the recharge pump. According to different separated areas in the quasi aerobic landfill, target recharge of percolates is carried out, rich iron resources in the landfill are fully utilized, the biological oxidoreduction cycling of iron can be achieved through the physical, chemical and biological process inside the landfill, and therefore the endogenesis cutting-down aim of the H2S can be achieved.

The invention relates to an ozone full-utilization type sludge reduction reaction system. The sludge reduction reaction system comprises a reaction slot, a jet device, an ozone generator and a spray head, wherein the jet device is connected with the reaction slot, the ozone generator is used for supplying ozone into the jet device, and the spray head is communicated with the jet device; and the jet device is connected with the spray head through a booster pump, a mixing tank for receiving jetted matters is arranged below the spray head, and a sludge outlet of the mixing tank is communicated with the reaction slot, so as to form a circulation channel. The system has the beneficial effects that the structure is simple, the occupied area is small, the investment is saved, the operation is simple, the reaction efficiency is high, ozone can be completely utilized, and an ozone decomposer is not used; the sludge reduction effect is remarkable, and the amount of sludge can be reduced by 50%-90% or above; and the system is well compatible with an existing sludge process and can be applied to sludge reduction of sewage treatment plants in large scale.

The invention relates to a sludge reduction reaction system. The sludge reduction reaction system comprises a reaction tank, a submersible sewage pump, a releaser and an ozonizer, wherein the submersible sewage pump and the releaser are arranged in the reaction tank; the ozonizer is arranged outside the reaction tank; the reaction tank is provided with a sludge inlet and a sludge outlet; an ozone outlet of the ozonizer is connected with a gas inlet of the submersible sewage pump; a material flow inlet of the releaser is connected with the submersible sewage pump; the submersible sewage pump sucks sludge and ozone by negative pressure; the sludge and the ozone are mixed and then flow into the releaser; the material flow inlet, an arc-shaped material flow channel connected with the material flow inlet and a material flow orifice are formed in the releaser; the material flow channel is communicated with the orifice; material flows entering the releaser pass through the material flow channel and then are sprayed out by the orifice. The reaction system disclosed by the invention has the advantages of simple structure, small occupied area, investment saving, simple operation and high reaction efficiency; the ozone can be completely utilized, so that the use of an ozone destructor is avoided.

The invention discloses a treatment method for excess sludge, which belongs to the field of sludge treatment, and includes the steps of pre-treating; feeding the excess sludge to a sludge concentration tank for concentration; feeding the sludge subjected to the pre-treating steps into a closed reaction container and hydrolyzing the sludge at a certain pressure and at a certain temperature; and enabling the sludge subjected to hydrolytic treatment to be quickly deposited, and removing supernatant liquid on the sludge prior to drying the sludge, so that the dried sludge can be directly used as soil. The treatment method is simple in treatment technology, low in cost and capable of effectively treating the sludge which is harmful or easy to cause secondary pollution, so that harmlessness and reduction of the sludge are realized, and the sludge is kept stable.

The invention provides a concentration and decrement treatment method for chemical nickel waste liquid. The concentration and decrement treatment method comprises the following steps: S1, carrying out low-temperature negative-pressure evaporation and concentration on the chemical nickel waste liquid at the temperature of less than 50 DEG C and under the negative pressure condition; and S2, carrying out medium-temperature concentration and drying on the chemical nickel concentrated liquid treated in the step S1 at the temperature lower than 220 DEG C. According to the technical scheme, a low-temperature negative-pressure evaporation and concentration process is adopted for treatment, the waste liquid can be evaporated only by heating to a low temperature, energy consumption is greatly reduced, the evaporation efficiency can reach a high level, and about 70% of the waste liquid can become steam condensate water. After secondary evaporation concentration treatment of low-temperature negative-pressure evaporation concentration and medium-temperature concentration, drying and reduction, about 85% of waste liquid is converted into steam condensate water, the steam condensate water enters a waste water treatment facility to be treated and discharged after reaching the standard, about 15% of the rest waste liquid is concentrated into solid substances, and the waste liquid reduction effect is obvious.

The invention discloses a high-efficiency black and odorous water treatment method and device. The treatment device for purifying black and odorous water comprises an ecological floating island, wherein the ecological floating island comprises an ecological floating island rack and a plurality of planting tanks arranged on the ecological floating island rack; a self-driven displacement device is connected onto the ecological floating island rack and comprises a multi-parameter water quality detector, a first central processing unit and propellers which are respectively connected onto side periphery surfaces of the ecological floating island; the first central processing unit is used for receiving parameter signals of the multi-parameter water quality detector and presetting corresponding reference parameters; the propellers are arranged on the side periphery surfaces of the ecological floating island; an on-off controller of each propeller is controlled by the first central processingunit; and a self-generating device is connected onto the ecological floating island rack. A sludge treatment agent used for treating river sludge comprises 20-50 parts of modified charcoal powder, 30-50 parts of aggregate, 25-35 parts of a microbial agent, 15-25 parts of a co-substrate and 10-15 parts of an oxidizing agent.