55results about How to "Reduce follow-up processing costs" patented technology

The invention belongs to the field of sewage treatment and provides a short distance denitrifying dephosphatation double-sludge technique taking granular sludge as medium and a device thereof. The device sequentially comprises a raw water pipe, a water inlet tank and a water inlet valve, and is characterized by further sequentially comprising an anaerobic/anoxic SBR reactor and an intermediate water tank which are connected with each other by a pipeline as well as a short distance nitration SBR reactor and a back flow water tank that are also connected with each other by the pipeline; wherein the intermediate water tank is connected with the short distance nitration SBR reactor, and the back flow water tank is connected with the anaerobic/anoxic SBR reactor; the anaerobic/anoxic SBR reactor and the short distance nitration SBR reactor are internally provided with stirring devices, and a drain pipe is arranged on the anaerobic/anoxic SBR reactor; the short distance nitration SBR reactor is internally provided with an aerating apparatus; the granular sludge which is processed by acclimatization and has the function of denitrifying dephosphatation is put into the anaerobic/anoxic SBR reactor, and the granular sludge which is processed by acclimatization and has the function of short distance nitration is put into the short distance nitration SBR reactor. The invention solves the problems of unstable effect of nitrogen and phosphorus removal of sewage, high content of effluent suspended matter and lower pass rate, so as to be used for low C/N waste water treatment.

A integrated biomass thermocracking equipment for preparing liquid fuel is composed of cyclone separator, carbon filter, multi-stage condensing system consisting of two air coolers, two heat-transfer oil heaters and three condensers, self-heating system consisting of two air coolers, carbon burner and heat exchanger of reactor, combined feeder, and cross-section variable fluidized-bed reactor. Its advantages are flash temp-rasing of biomass, fast eduction out of volatile components and recovering solid carbon.

The invention discloses a method for pre-consolidating mixed hydraulically-filled soft soil foundation and a device thereof, relating to the field of pre-consolidation treatment technology of soft soil foundation. The method arranges a horizontal drainage passage in the mixed hydraulically-filled process, adopts a vacuum preloading and electroosmosis combined method for construction, carries out early intervention and consolidation of the ultra-soft soil actively during the hydraulically-filled process and the initial stage of the hydraulically-filled process, and creates a prophase condition for the subsequent foundation consolidation. The device arranges reinforcement cage sand bad collecting wells at the construction site and arranges a horizontally-communicated drainage sand bag between the reinforcement cage sand bag collecting wells; and a dual-pipe mixed hydraulically-filled equipment, the reinforcement cage sand bag collecting wells, a treatment equipment by the vacuum preloading and electroosmosis combined method and a collecting well pumping equipment are sequentially connected from left to right. The method and the device can cause the saturated soft soil to generate early consolidation and pre-settlement, leads the pre-treated foundation soil to meet the load metamorphism requirement better in the engineering usage stage and can greatly save engineering period and subsequent engineering treatment expense.

The invention discloses a biodegradable non-phosphorous anti-scale corrosion inhibitor and a preparation method thereof. The biodegradable non-phosphorous anti-scale corrosion inhibitor comprises, by mass, 10-20% of polyaspartic acid, 5-20% of polyepoxysuccinic acid, 30-60% of copolymers, 5-10% of zinc salt, 2-5% of fluorescent tracers and the balance water, wherein the molecular weight of the copolymers ranges from 2000-10000, and the copolymers are maleic anhydride/acrylic acid/ acrylic acid oxylactone/2-acrylamide-2-methylpro panesulfonic acid quaternary copolymers. The non-phosphorous anti-scale corrosion inhibitor is used for stainless steel condenser circulating cooling water systems of thermal power plants, is non-phosphorous, non-toxic, easily biodegradable, free from environmental problems and unlimited in discharge, and is capable of controlling carbon steel corrosion rate to be smaller than or equal to 0.075mm/a, controlling corrosion rate of copper, copper alloy and stainless steel to be smaller than or equal to 0.005mm/a, controlling dirt deposition rate to be smaller than or equal to 15mcm and controlling scale inhibition rate to be larger than or equal to 80%.

The invention relates to the field of livestock and poultry feces treatment methods, and in particular relates to a deep dehydration recycling method for livestock and poultry feces. The method specifically comprises the following steps: adjusting the pH value of the livestock and poultry feces to be 2-4, adding ferrite or ferric salt into the livestock and poultry feces with the adjusted pH value, uniformly stirring, subsequently adding hydrogen peroxide into the livestock and poultry feces, stirring for 50-180 minutes, adding a phosphorus curing agent into the treated livestock and poultry feces, adjusting the pH value to be 8.5-10.5, uniformly stirring, and performing filter pressing on the treated livestock and poultry feces by a filer press for dehydration. The method is high in speed, short in period, high in solid recycling rate, high in dehydration degree, low in energy consumption and low in cost.

A method for efficiently fully leaching zinc from dust caused by making steel from waste galvanized plates comprises the following steps: (1) performing normal-temperature neutral leaching on zinc oxide dust to obtain a neutral leaching liquid and a neutral leaching slag; (2) performing high-temperature concentrated-acid leaching on zinc ferrite dust to obtain a high-temperature concentrated-acid leaching liquid and a high-temperature concentrated-acid leaching slag; (3) employing the high-temperature concentrated-acid leaching liquid as a leaching reagent to perform normal-temperature acidic leaching on the neutral leaching slag; and (4) employing the normal-temperature acidic leaching liquid as a leaching reagent to performing normal-temperature neutral leaching to obtain a neutral leaching liquid which is a finished product liquid. The method is easy to perform and easy for commissioning; and after the technology is modified, spent acid is fully utilized when the zinc source is effectively recovered, and also the iron ion content in the leaching liquid is reduced, so that the subsequent iron-removing processing cost is greatly saved.

The invention relates to a coagulation-oxidation combined type method for processing sewage. According to the method, a reaction tank with an automatic control system is adopted, and a coagulation process and a Fenton oxidation process are successively carried out in the reaction tank. The method provided by the invention comprises the following steps of: carrying out the Fenton oxidation process, adjusting the pH value to a neutral pH, allowing sewage to stay, followed by separation, taking the obtained solid precipitate as a coagulant, treating the sewage in the reaction tank by the coagulation process, followed by staying and separation, allowing settled sludge to flow out through a mud collecting bucket on the lower portion of the reaction tank and enter a subsequent sludge processing system; and adding a Fenton reagent into the reaction tank to carry out the oxidation treatment, adjusting the pH value to a neutral pH, followed by staying and separation again, discharging a supernatant as the effluent, reusing the produced neutral solid precipitate as the coagulant of the next coagulation process. The method provided by the invention is suitable for the advanced treatment of sewage as well as the treatment of refractory organic sewage to reach the standard, and has advantages of simple equipment, small installation space, and convenient operation and management; in addition, the coagulation-settlement process and the Fenton oxidation reaction are finished in a reaction tank, and the whole treatment process is automatically controlled.

The invention discloses a discharging device for a heat accumulating type thermal decomposition furnace to treat pyrogenic decomposition solid products of a junked tire. The discharging device comprises a shell, a material laying plate used for containing the solid products, a chain board wheel transmission assembly, a driver and a plurality of material scraper blades. A discharge opening is formed in the shell. The material laying plate is movably arranged inside the shell. The chain board wheel transmission assembly is arranged inside the shell and placed above the material laying plate. The driver drives the chain board wheel transmission assembly to operate. The material scraper blades are respectively arranged on a transmission chain of the chain board wheel transmission assembly, the transmission chain drives the material scraper blades to move, and the material scraper blades push the solid products to the discharge opening. According to the discharging device, the traditional problems of material clamping, blocking and the like are solved, the continuous discharging purpose is achieved, the operating cost caused by abnormal maintenance and overhauling is greatly lowered, carbon black can be effectively prevented from being ground into powder, the potential risk caused by raised dust is avoided, and meanwhile the physical property of the solid products can not be damaged.

The invention relates to the technical field of water treatment, in particular to a phosphate-free scale inhibitor for water treatment, which is good in effect, low in cost and high in scale inhibition capacity and cannot cause secondary pollution to the water body. The phosphate-free scale inhibitor is characterized by comprising the following components: polyacrylic acid, hydrogen peroxide, rubber tannin, mirabilite, sodium citrate, zinc chloride, sodium molybdate, polyaspartic acid, acrylic acid sulfonic acid, polyepoxysuccinic acid and triethanolamine. When the phosphate-free scale inhibitor is used, the components are taken in proportion, water is added, and after a solution is prepared, the solution is added to water treatment equipment; compared with the prior art, the phosphate-free scale inhibitor is non-toxic and non-phosphorus, main organic components are easily degraded, the environmental pollution cannot be caused, and thus the subsequent treatment cost is greatly reduced.

The invention discloses a pulping and papermaking wastewater biological treatment system, which is lower in running cost and capable of effectively protecting the environment. The pulping and papermaking wastewater biological treatment system comprises a grille pond, a water collecting well, a settling pond I, a cooling tower, a balancing pond, a water quality regulating pond, an electrolytic reaction system, a hydrolysis acidification pond, a water distributing well, an EGSB (Expanded Granular Sludge Bed) reactor, a settling pond II, an A/O pond, an aeration pond, a settling pond III, a modified Fention pond, a settling pond IV, a multi-gradient flocculation pond, a filtering pond, a sludge pond, a sludge dewatering room and communicating pipelines.

The invention discloses a ship flue gas purification device. The device comprises a first treatment chamber, a combustion chamber, a second treatment chamber and a flue gas pipe, wherein the first treatment chamber is communicated with a marine main engine through a flue gas pipe, the first treatment chamber is communicated with the second treatment chamber through a flue gas pipe, the first treatment chamber is communicated with the combustion chamber, an adsorption mechanism is arranged on the first treatment chamber, a combustion mechanism is arranged in the combustion chamber, and a purification mechanism is arranged in the second treatment chamber; the ship flue gas purification device, by means of the adsorption mechanism, not only can filter fixed particles in ship waste gas, but also can adsorb liquid components like oil mist in the ship waste gas, and through an incineration mechanism, activated carbon which is adsorbed to be saturated is sufficiently combusted, the limited space on a ship can be saved, harmful gas and oil mist adsorbed in the activated carbon can be thoroughly removed, and the subsequent treatment cost is saved.

The invention discloses a sludge deep dehydration quantitative reduction treatment system. The sludge deep dehydration quantitative reduction treatment system is characterized in comprising a first sludge inlet pump, a wall breaking reactor, a self-suction jet device, a releaser, an ozone generator, a sludge filter press and a circulating pump; sludge is lifted using the first sludge inlet pump toenter the self-suction jet device or the wall breaking reactor; the ozone generator or ozone tail gas is communicated into the wall breaking reactor through the self-suction jet device, the releaseris arranged at the bottom of the self-suction jet device and is arranged at the bottom of the wall breaking reactor, and sludge enters the sludge filter press after being treated by the wall breakingreactor; and the self-suction jet device, the wall breaking reactor and the circulating pump are communicated through pipelines to form a cycle. The self-suction jet device and the releaser are combined for use, so that the ozone utilization rate can be greatly improved, a good sludge treatment effect can be achieved under the condition of low ozone addition amount, and the cost is reduced.

The invention provides a low-carbon nitrate wastewater efficient purification device system based on a mixed matrix and a purification treatment method. The device system comprises a water supply unit, a purification device and an effluent collection unit which are connected in sequence, a water distribution layer, an efficient mixed matrix layer and a supporting layer are sequentially arranged in the purification device in the upward direction perpendicular to the ground; a filling medium of the efficient mixed matrix layer comprises a low-valence sulfur mixture and oyster shells. According to the sulfur-pyrite autotrophic denitrification device system disclosed by the invention, efficient denitrification can be realized; the oyster shells can replace carbonate minerals to participate in the sulfur-pyrite autotrophic denitrification process, a large number of attachment sites, trace elements and inorganic carbon sources are provided for microorganisms, and the acid-base environment of the system is kept stable. The device provided by the invention is simple and feasible in system, good in economical efficiency, free of additional addition of an organic carbon source, excellent in denitrification effect and less in by-product, and has good application potential for a water body with low organic carbon content.

The invention discloses an industrial waste oil treatment process which comprises the following steps: dissolving ethylene glycol butyl ether and a water-coal-slurry additive in industrial waste oil, stirring at normal temperature, and forming a mixed liquid; and adding pulverized coal and water into the mixed liquid, and continuously stirring to form a water-coal-slurry product which is not layered. According to the process, the original scraped waste oil which cannot be directly discharged is changed into a valuable material, the subsequent treatment cost is saved, and the heating value of the water-coal-slurry product prepared by utilizing the industrial waste oil is correspondingly improved. Moreover, the problem that the traditional organic waste liquid water coal slurry is low in stability is solved according to a coupling agent stabilization technology provided by the invention, the problem of the system stability of the product can be fundamentally solved, the stability of the product is improved, oil-water separation is not generated due to long-term standing, the operations of loading and unloading, storage, pipeline transportation and atomization space combustion are easy, and the process can be used for oil, gas and coal combustion in power station boilers, industrial boilers and industrial furnaces.

The invention discloses a non-phosphorus corrosion and scale inhibitor for an industrial cooling water system as well as a preparation method and application thereof. The non-phosphorus corrosion and scale inhibitor is composed of an itaconic acid-diethylene glycol ether-acrylic acid terpolymer, Polyepoxysuccinic Acid (PESA), zinc citrate, Benzotriazole (BTA) and water, wherein the weight percentage of the itaconic acid-diethylene glycol ether-acrylic acid terpolyme in the non-phosphorus corrosion and scale inhibitor is 15.0%-40.0%, the weight percentage of the PESA in the non-phosphorus corrosion and scale inhibitor is 5.0%-20.0%, the weight percentage of the zinc citrate in the non-phosphorus corrosion and scale inhibitor is 5.0%-12.0%, and the weight percentage of the BTA in the non-phosphorus corrosion and scale inhibitor is 0.5%-0.8%, and the balance of water. Wastewater discharged after the use of the non-phosphorus corrosion and scale inhibitor does not cause phosphorus-induced eutrophication pollution to water, and is environment-friendly; the dosage of the non-phosphorus corrosion and scale inhibitor for treating water per ton is 3-10mg/L; the non-phosphorus corrosion and scale inhibitor is stable in performance and widely applied to different water qualities.

The invention provides a heat recovery system of a multi-effect evaporation system and a processing method thereof. The heat recovery system of the multi-effect evaporation system comprises an evaporating device connected in parallel or/and in serial with an end effect evaporating device of the multi-effect evaporation system; the bottom of the evaporating device is provided with a heat supply device, and the heat source of the heat supply device is a low-temperature heat source at 90-130 DEG C. The heat recovery system of the multi-effect evaporation system makes full use of end-effect low-temperature hot trap of the multi-effect evaporation system to recover low-temperature heat of other technical devices, thereby reducing consumption of fresh steam of an initial-effect evaporator as well as the costs of aftertreatment of concentrated liquid waste.