115results about How to "Reduce wasted water" patented technology

The invention discloses a halomonas strain and application thereof. The halomonas strain is a halomonas sp. TD01 with a preservation number of CGMCC NO.4353. Experiments indicate that the halomonas sp. TD01 can effectively accumulate polyhydroxyalkanoates (PHA) in a mineral medium (MM) and provides a better guarantee for the biosynthesis of the PHA and PHBV (poly(hydroxybutyrate-hydroxyvalerate)). The halomonas strain has the advantages of simple nutrient requirement, no need of sterilization in a fermenting process, capability of continuous implantation and simpleness and easiness in control. Methods for preparing the PHA by using the halomonas sp. TD01 all lower the production cost from varying degrees and increase the yield of the PHA; and the obtained PHA has the molecular weight of above 500kDa and has an industrial application value.

The invention discloses a joint optimization regulation system for cascade hydropower stations. The system comprises a remote centralized monitoring system, a water regulation automation system, a tele-meter reading system and a remote image monitoring system, wherein the remote centralized monitoring system and the water regulation automation system are connected after being safely isolated by a hardware firewall, thus realizing the logic isolation, message filtering and access control of the two areas; the water regulation automation system and the tele-meter reading system are connected by an RS-232 serial port; and the remote centralized monitoring system, the water regulation automation system and the tele-meter reading system are all provided with a WEB releasing sub-system which is connected with the remote image monitoring system through a router with a fireproof wall. With the adoption of the joint optimization regulation system provided by the invention, the safety of the system can be improved, the centralized unified management and scheduling can be realized, the number of management persons can be reduced, and the cascade joint scheduling benefits can be improved.

The invention discloses a method that uses esterase obtained by 100 percent deinking and desizing of wasted newspaper controls sticky which mainly aims at producing the low fixed amount newspaper by using the 100 percent deinking and desizing of the wasted newspaper, adopts Optimyze 525 esterase control sticky and produces the newspaper with 45g/mm<2> fixed amount. The invention has the advantages of reducing the dosage of the sticky in the paper pulp, leading the sticky removing rate to be about 20 percent to 40 percent, reinforcing the operating performance of a paper machine, and helping to improve the speed and the output of the paper machine; by adopting deinking and desizing of 100 percent wasted newspaper to make 45g/m<2> lowing amount offset newsprint, the obtained products have good quality, chemical pulp and groundwood pulp which are high in pollution and high consumption are eliminated, the manufactory cost of the pulp material and the processing cost of the water are reduced, and the discharged waste water and the pollutants are reduced.

The invention relates to a cooperative pretreatment method for biological catalysis and controlled oxidation of cotton and cotton-type fabrics, comprising the following steps: (1) preparing a biological compound enzyme preparation, a biological enzyme synergist and a non-ionic surfactant into an enzyme working solution, wherein the pH of a processing bath is 6-7.5; padding the fabrics into the working solution; carrying out heat preservation; (2) washing the processed fabrics with cold water; padding the fabrics into a hydrogen peroxide bleaching solution containing the controlled decomposition additive of hydrogen peroxide; and steaming, washing with water and drying to obtain the finished products. In the method, high-density strong base is not required to serve as a scouring agent, thepH value of pretreatment waste water is 7-8, the chromaticity is low, the COD (Chemical Oxygen Demand) value is lowered by 30% compared with that of the traditional alkali kiering pretreatment technology, the water is saved by 10-30%, and the steam and electricity can be saved by 20%. The indexes (whiteness, capillary effect, water absorption, cotton seed hull strainaway rate, desizing rate, strong force and the like) of the processed cotton and cotton-type fabric all reach the quality indexes of a semi-product, cotton seed hulls can be completely removed, and the fabrics have vivid color andgood levelling property after being dyed.

The invention relates to a regional electric power market power selling main body settlement system and settlement method, and belongs to the electric power system technical field; the system comprises a data acquisition module, a metering module, a deviation setting module, a day-ahead electric quantity settling module, a monthly double side settling module, a monthly concentration transaction settling module, a priority generating capacity settling module, and a gathering settling module; the power selling main body settlement system is novel in structure, reasonable and efficient in the settlement process, thus solving the problems that existing cross-region cross-province electricity power transaction marketization level is low, and price distribution and benefit space are not reasonable; the power selling main body settlement system and method can improve the transaction main body activity, can enhance the market vitality, and are highly efficiency, transparent, and reasonable in structure.

The invention belongs to a method for preparing pentaerythritol trimethylacrylate, comprising the steps as follows: (1) pentaerythritol, acrylic acid, catalyst, solvent and polymerization inhibitor are put into a reaction kettle to be fully mixed and stirred so as to form a miscible liquid; (2) a steam valve of the reaction kettle is opened to slowly heat the miscible liquid, and the temperature is controlled and maintained at 70-90 DEG C for a 20-40min reaction; (3) the mixture is continued to be heated, when the temperature is increased to 80-115 DEG C, reflow is carried out for 3-5h and then the reaction is finished; (4) soda water solution and sodium chloride water solution are added into the mixture and after washing the upper organic phase is extracted; (5) the upper organic phase is separated from the solvent; (6) and filter pressing is carried out to obtain the end product. The method has simple process, good quality, activity and flexibility, low shrinking percentage and color intensity and high yield coefficient, and produces few by-products or little waste water.

The invention provides a method for producing polyhydroxyalkanoates (PHA) through halophilic bacterium sterilization-free fermentation. The method comprises the following steps of (1) inoculating halophilic bacteria into a culture medium for fermentation culture; (2) after the fermentation to a logarithmic phase, supplementing a first supplementing material culture medium for first stage materialsupplementation fermentation; (3) after the first stage material supplementation fermentation is completed, supplementing a second supplementing material culture medium for second stage material supplementation fermentation; (4) after the second stage material supplementation fermentation is completed, supplementing a third supplementing material culture medium for third stage material supplementation fermentation until the fermentation is completed, wherein the first supplementing material culture medium in step (2) and the second supplementing material culture medium in step (3) comprise carbon sources and nitrogen sources; the third supplementing material culture medium in step (4) only comprises carbon sources; in addition, the nitrogen source content in the second supplementing material culture medium in step (3) is lower than the nitrogen source content in the first supplementing material culture medium in step (2).

A toner for developing an electrostatic image, a process for producing the same, a developer for developing an electrostatic image and a process for forming an image are disclosed. The toner contains a resin, a colorant and a releasing agent, in which the toner has protrusions having a height of about from 0.05 to 2 mum, a part of the protrusions encompasses the releasing agent, and a proportion of elements derived from the releasing agent is about 10% by atom or less based on elements on a surface of the toner that is quantitatively determined by X-ray photoelectron spectroscopy.

The invention provides a security constraint generation schedule planning method based on water and fire coordination. The method comprises the following steps that power grid basic data are acquired, and electricity demands are determined; based on 'just, fair and open' dispatching and energy-saving dispatching, the electric quantity is balanced, and electric power is adjusted; according to the water and fire coordination constraint demand, the constraint condition of a water and fire coordination joint optimization model is determined; an optimization objective is determined; water and fire coordination joint optimization computing is carried out, and the generation schedule is determined. According to the method, based on the running and planning characteristic of a power grid including a large-scale water and electricity access dispatching mechanism, the water and electricity running and water and fire coordination optimizing characteristics are combined, the optimization objective includes the running cost of a thermal power unit and a hydropower unit and a unit output force adjusting penalty function, peak elimination and valley filling are carried out through coordination of the hydropower unit and the thermal power unit, so that the total adjusting amplitude of output force of the units in the system is reduced, and therefore power adjustment losses of the units in the system are reduced.

The invention relates to an incentive compatibility listing power transaction system and a transaction method, and belongs to the power market transaction system technical field; the system comprises a registration information input module, an ID verification module, a power purchasing body listing module, a power selling body delisting module, a first display module, a transaction logic calculating module, a safety constrained condition input module and a transaction checking module; the system uses an incentive compatibility principle to mainly excite the market body in three aspects: actively participating the market, truly reporting demands and prices, and standardizing transaction behaviors; in delisting transaction, in order to invoke bidder bidding enthusiasm, the excitation method based on price difference return is employed, so the price difference volume of trade between listing power price and delisting power price can be compensated to the power selling body according to certain returning coefficient, thus encouraging the power selling body to offer a lower price, actively promoting delisting transaction valid deals, and forming a multi-party win-win mechanism.

The invention discloses a method for extracting beryllium from alexandrite-type beryllium concentrate with a low enrichment ratio, and aims to solve the problem of high impurity concentration in the leachate when alexandrite-type beryllium mineral is soaked in acid directly, which strongly influences the follow-up recycling of beryllium. The method comprises the procedures of concentrate pre-treatment, acidification and roasting, water immersion, impurity removing, extraction, and recycling. The method comprises the following particular steps: pretreating the beryllium concentrate using a hydrochloric acid solution 3-5 mol/L with the concentration of 3-5 mol/L; adding concentrated sulfuric acid into the pretreating material obtained in the step (1) according to the acid mineral ratio of 1:(0.8-1.2); performing acidification and roasting for 0.5-1.5 h; performing water immersion according to the liquid solid ratio of (2-3):1; removing impurity through coprecipitation; extracting; performing reextraction, adopting stripping agent with the concentration of 2-3 mol/L to reextract the loading organic phase obtained in the step (5), performing ammonia salting-out or thermal decomposition to obtain the end product. The method is simple and reliable; the industrialized production can be easily realized; the content of beryllium fluoride or beryllia is higher than 97%; the product quality is good; the recovery of beryllium is higher than 73%; the method is suitable for extracting beryllium from high-fluoride low-grade alexandrite-type beryllium mineral.

The invention discloses a process for treating tail gas containing insoluble solvent. The tail gas containing the water-insoluble organic solvent enters into a water ring vacuum pump through a tail gas buffer tank; the tail gas in the water ring vacuum pump is thoroughly mixed with working fluid of the water ring vacuum pump; a water-gas mixture is separated by a gas-fluid separation device on an outlet of the water ring vacuum pump; the fluid returns back to a system to be circularly used; the organic solvent in the gas, which is likely to escape, is further recycled by a glass condenser arranged on the tail part, and then the gas is completely exhausted after being filtered and adsorbed by an activated carbon filter; the working circulating fluid of the water ring vacuum pump is cooled to reduce the temperature by a cooler; and fluid in a fluid-recycling tank of the glass condenser and fluid in a circulating water basin of a circulating system are lifted into a phase splitting tank for phase splitting treatment, the separated organic solvent is sent to a rectification system to be rectified and purified, and aqueous phases return to the circulating water basin to be continuously and circularly used. The process not only can recycle the useful components of the tail gas to reduce environmental pollution, but can also reduce the consumption of the solvent to lower the production cost.

The invention relates to a synthesis method of copper pyrithione, which is characterized by comprising the following steps: (1) 2-chloropyridine oxidization: adding 2-chloropyridine and a catalyst into a container, and dropwisely adding hydrogen peroxide; (2) filtering the solution obtained in the step (1), carrying out vacuum drying on the filter cake, washing the filter cake, and carrying out vacuum drying on the filter cake again, wherein the obtained filter cake is the catalyst used in the step (1), and the filtrate is a 2-chloropyridine oxynitride solution; and (3) preparation of copper pyrithione. By using the synthesis method provided by the invention, the oxidization yield of 2-chloropyridine is enhanced from 80% to 98%, the total yield is enhanced from 75% to 93%, the product quality is enhanced from 95-96% to more than 98%, and the recycled catalyst can be used repeatedly; and thus, the raw material consumption is reduced, the production cost is lowered, the technological operation is simple, and the wastewater amount and COD (chemical oxygen demand) are obviously reduced.

The invention discloses a method for real-time optimal dispatching and benefit evaluation of a cascade reservoir group. The method comprises the following steps of: when a flood is forecasted, increasing the output power generation of each reservoir in advance, carrying out full-load operation on the upstream reservoirs to reduce the water levels of the reservoir to a dead water level threshold value and then empty the reservoir capacity; when the flood happens, closing the upstream reservoirs so as to back up the flood for the downstream reservoirs under the premise that the downstream reservoirs are fully loaded, and compensating the additionally generated power of the downstream reservoirs to the upstream reservoirs; if the water levels of upstream reservoir power stations rise to exceed a normal high water level and heavy rainfall is forecasted in N days, opening the upstream reservoirs to carry out flood discharge, and compensating the additionally generated power of the downstream water reservoirs to the upstream reservoirs; after the water levels fall, opening the upstream reservoir power stations to ensure that the downstream reservoir power stations are fully loaded; and evaluating the annual performance of the cascade reservoir group via the power of abandoned water of the upstream reservoirs and the additionally generated power of the downstream reservoirs. According to the method disclosed by the invention, measures such as pre-discharge and reservoir emptying, peak staggering and peak clipping, and flood tail interception and storage are adopted, so that less abandoned water of the cascade reservoirs is realized and the power generation benefit of the cascade reservoirs is improved.

The invention discloses a method for preparing a methyl pyridine nitrogen oxide. The method comprises the following steps of: (1) mixing methyl pyridine and catalyst in a mass ratio of 1: (0.05-0.5), stirring, and adding hydrogen peroxide for reacting at the temperature of between 40 and 90 DEG C, wherein the molar ratio of the hydrogen peroxide to the methyl pyridine is (0.8-3.5): 1; and (2) keeping the temperature unchangeable, reacting for 3 to 10 hours with stirring, cooling to normal temperature, filtering to obtain methyl pyridine nitrogen oxide filtrate, concentrating, and thus obtaining a finished product of the methyl pyridine nitrogen oxide, wherein an MCM-41 mesoporous molecular sieve is used as a carrier of the catalyst. By adopting the preparation method, the reaction conversion rate of the methyl pyridine reaches 100 percent, the yield of the methyl pyridine nitrogen oxide is over 98 percent, and the content of the methyl pyridine nitrogen oxide is improved from 95-96 percent to over 98 percent.

The invention discloses a gate-front control point variable target water level control system and mode based on channel pool storage balance. The channel system is a water delivery open channel systemwhich is divided into a plurality of channels through a plurality of throttling gates; a plurality of water taking ports are formed in each channel pool, and the water taking opening is formed in thedownstream of the channel pool. The system comprises a control module, a sensor device, a parameter input device and a gate opening and closing device, wherein the sensor device, the parameter inputdevice and the gate opening and closing device are connected with the control module. The control mode is characterized in that a multi-constraint condition is taken into consideration, and the calculation of the target water level of the control point of the channel before the channel is changed under the condition that the water taking plan is known, so that the situation that the storage capacity change of the channel pool is too large is avoided according to different water taking working conditions, and the water supply burden of an upstream water source project is reduced, and the wastewater of the downstream waste water is reduced. Accordingly, the channel system is enabled to achieve control requirements such as rapidity, stability and accuracy in the channel system operation scheduling.

The invention discloses a one-bath desizing and refining method of pure starch sizing cotton fabric, and belongs to the technical field of textile dyeing and finishing pretreatment. According to the method, crude enzymes with various enzyme components such as laccase, cellulase, hemicellulase and pectinase produced by trametes Trametes sp.LEF01 are compounded with amylase, enzymic method one-bath desizing and refining pretreatment is conducted on PVA-free pure cotton fabric with starch slurry, starch slurry material is degraded through amylase, pectin, cottonseed hulls and other non-associated impurities are degraded through crude enzymes produced by trametes, and the removal of starch slurry material on fabric, the improvement of fabric wettability and the smoothness of surface are achieved. By means of the method, the pretreatment effect of cotton fabric can be comprehensively improved, the defects that during traditional alkali method desizing and refining, energy consumption, water consumption and waste water discharge are high, and environment pollution is severe are overcome, and the method is a green and environment-friendly cotton fabric short-process cleaning and producing process.

The invention discloses a cleaning and producing technology of turmetic produced saponin, which is characterized in that after turmetic is crushed to extract saponin, the separated saponin solution is added with a proper amount of flocculant for total sedimentation, and then, sediment is separated by a centrifugal machine; a proper amount of dilute sulfuric acid solution is added into the concentrated saponin, and then, the concentrated saponin is hydrolyzed and filtrated under the pressure; 1/3-1/2 of filtrated waste liquid is added into the hydrolyzed objects, and then, a proper amount of sulfuric acid solution is added for carrying out pressed hydrolysis according to the above conditions in order to obtain residue mixture and filtrate. The residue mixture can be changed into saponin by the processes of deacidification, drying, extraction, concentration, crystallization and drying. The cleaning and producing technology of turmetic produced saponin can cause a plurality of decanting centrifuges to be connected in series for use, so separation is simpler, and the residue amount of effective constituents is small. The flocculant used for concentrating saponin not only increases the concentrating efficiency of saponin, but also improves the concentrating degree of the saponin.

The invention relates to a monthly self-listing power trading system and a trading method, which belong to the electric power market trading system technology field. The method comprises the steps of user logging in, information publication, power plant listing, power user de-listing, and trade verification. According to the invention, the various trading bodies, for their different types, settle a dealing price through the listing and de-listing manners and according to their actual trading condition as well as the monthly balance mechanism, make adjustment to their power amount. In the invention, a competitive mechanism is introduced, which helps increase the selection right of the power users, developing an effectively competitive market structure and a market system. The power industry becomes more efficient, blazing a new path for the marketing reform of the market mechanism.

The invention discloses a DC sending-end hydropower station optimal scheduling method compatible with receiving-end power grid peak regulation requirements. The method comprises the steps: carrying out modeling construction on the hydropower short-term optimization scheduling problem to obtain a mathematical model; after calculation conditions are set, linearizing an objective function firstly, performing linearization processing on nonlinear objective constraints on the premise that precision is allowed, and then converting an original highly-non-convex mixed integer nonlinear programming model into a mixed integer linear programming model, and solving the model on the basis of the mixed integer linear programming model through employing an optimization solver. The model provided by theinvention has relatively high calculation efficiency; the formulated power transmission plan effectively responds to the peak regulation demand of each receiving-end power grid, the peak-valley difference of the power grid is remarkably reduced, the power transmission limitation of the direct-current tie line is met, the executability of the direct-current tie line plan is improved, and the trans-regional coordinated operation of the sending-end hydropower station, the high-voltage direct-current tie line and the receiving-end power grid is realized.

An apparatus for unclogging a toilet with the sliding mechanism allowing for easier operation. The sliding mechanism easily allows movement of the snake within the handle. The sliding handle is in a locked position when the snake is not in use. The rubber air tube, when plunging, does not allow water to enter. There is a reducer connecting the plunger to the stationary handle. There is a hollow nipple inside the reducer which connects to the lower end of the rubber tube. The snake goes through the nipple and up the hollow tube to the sliding mechanism. The top end of the rubber tube is connected to the sliding mechanism. The top end of the snake is threaded through the sliding mechanism, and there is a locking device on the top of the sliding mechanism connected to the snake. This is helpful for new “low flow” toilets.

The invention discloses an environmental friendly production method of a MICA active ester. The environmental friendly production method comprises the following steps: oximating, alkylating, chloridizing, cyclizing, and preparing an intermediate. The production method realizes the recycling of the materials, so that the cost is lowered, and the amount of produced wastes and wastewater is reduced; sodium acetate, a byproduct, is recrystallized in the S1 and used for cyclization in the S4, so that the amount of wastewater and the salt content of the waste water are reduced; the conventional process generally uses potassium carbonate to provide an alkaline environment in the S2, the use amount of the potassium carbonate is generally more than 2 equivalent weights, the defects are as follows: 1, the stirring is strenuous if the slat content is too high in the reaction process; 2, a large quantity of water is needed in the later processing to dissolve an inorganic salt, then a large quantity of high salt content wastewater is produced, but the amount of solid salt is greatly reduced in the reaction process after an organic alkali is used, the organic alkali is recycled in the later processing, and the cost and the amount of wastewater are reduced; a batch feeding mode is used in the S3, so that the use amount of sulfonyl chloride is reduced at the same conversion rate; 2-mercaptobenzothiazole, a byproduct produced in the reaction, is recycled in the S5, and is recycled again so as to be used in the synthesis of diphenyl thiazole disulfide.

The invention discloses a method and a device for comprehensively processing pig manure in a large-scale pig farm. The method for comprehensively processing pig dung in the large-scale pig farm comprises the following steps: S1, the pig dung in pig houses is collected by a mechanical dung scraping facility, and is transported into a dung collecting tank; S2, the pig dung in the dung collecting tank is added into a fermentation tower by a screw conveyor, undergoes anaerobic dry fermentation to produce biogas, and then undergoes aerobic composting; S3, the biogas generated in the anaerobic dryfermentation process is introduced into and stored in a gas storage cabinet, odorous gas generated during the aerobic composting is introduced into a biological filter and is processed, the above produced organic fertilizer is transported to a curing workshop and is cured, and generated biogas slurry and leachate enter an anaerobic fermentation reactor by a pump, and are used to produce biogas; and S4, the biogas obtained in step S2 and step S3 is purified, and then used, the produced organic fertilizer is returned to the field, and the generated biogas slurry is used for irrigating crops after being discharged into an oxidation pond and processed. The method and the device have the advantage of good processing effect, simple process conditions, no secondary pollution and high economic benefits.

The invention discloses a method for extracting ergosterol from zymophyte residues, which comprises the following steps: S1, extraction: adding a solvent, a saponifying agent and an extracting agent into the zymophyte residues containing ergosterol, and carrying out saponification and extraction reaction to obtain an extraction mixture; S2, carrying out phase splitting, namely carrying out phase splitting on the extracted mixture in the step S1 to obtain an extracting solution containing ergosterol; S3, crystallization: concentrating and crystallizing the extracting solution in the step S2 toobtain an ergosterol crude product. The invention further discloses a system for extracting ergosterol from the zymophyte residues. The method has the advantages of short process flow, short extraction time, low energy consumption in the extraction process, high product purity and the like.