41 results about "Suspended organic matter" patented technology

The invention relates to an advanced treatment and recycling combined apparatus with petrochemical sewage reaching the standard as a water source. The apparatus comprises an air floatation filter tank, an ozone reaction tank, an immobilized microorganism biological aerated filter, a V-shaped filter tank, an ultrafilter and a reverse osmosis filter, which are successively connected. The invention also provides a process for advanced treatment and recycling of the sewage by using the apparatus so as to obtain circulating water supplemental water. The process comprises the following steps: allowing the sewage to enter into the air floatation filter tank at first so as to remove oil, lightweight floc and suspended solids in the sewage; then allowing the sewage to enter into the ozone reaction tank to degrade organic matters difficult to degrade, thereby improving biodegradability of the sewage; allowing the sewage to enter into the immobilized microorganism biological aerated filter to remove organic matters and ammonia nitrogen in the sewage; allowing the sewage to enter into the V-shaped filter tank to remove suspended solids and suspending organic matters in the sewage; then allowing effluent of the V-shaped filter tank to enter into the ultrafilter so as to remove suspended solids and colloidal organic matters; and allowing effluent of the ultrafilter to enter into the reverse osmosis filter for reverse osmosis so as to remove salt and finally, delivering effluent to water consumption sites of circulating water supplemental water.

A process for the preparation of organic material comprising an organic substrate and at least one dielectric layer consisting of one or more oxides of a metal selected from groups 3 to 15 of the periodic table, which comprises the steps of:

• (a) suspending the organic material in an aqueous solution of fluorine scavenger;
• (b) adding an aqueous solution of one or more fluorine containing metal complexes which are the precursors of the desired metal oxide coating; and
• (c) subjecting said suspension to microwave radiation to deposit the metal oxide onto said organic material, wherein steps (b) and (c) can optionally be repeated using different fluorine containing metal complexes to produce one or more metal oxide layers.

The substrate can be optionally dissolved with solvent to yield free metal oxide or mixed metal oxides that have a plane-parallel structure.

The present invention discloses water purifying method for cultivation pond. The method is one water circulating process including pumping cultivation waste water from the bottom of pond center to one water trough; separating suspended organic matter from water in the water trough; natural photochemically catalytic oxidation of water; and returning the treated water to the pond. The method of the present invention can eliminate water pollution for aquatic cultivation in relatively low cost, improve the physical, chemical and biological conditions of cultivation water, and raise the water environment stability of cultivation water, and is suitable for pond cultivation with both sea water and fresh water.

The present invention provides one waste copper containing acid solution recovering and utilizing process in saccharin sodium production. The waste copper containing acid solution recovering and utilizing process includes filtering to eliminate suspended organic matter, oxidizing the filtrate with mixed oxidant of sodium hypochlorite and potassium hypermanganate to eliminate low boiling point organic matter, decompression distilling the solution in vacuum to obtain dilute hydrochloric acid solution, further extraction and concentrating distillation to obtain hydrochloric acid solution of 30 % concentration, burning residue after decompression distilling to eliminate organic matter and obtain high purity copper sulfate and powder of other inorganic salts. The said process can recover the useful matter from waste acid solution and avoid environmental pollution effectively.

The invention discloses a mark reaching treatment method of packaged wastewater in an industrial park. Aiming at the characteristics that the source of the packaged wastewater in the industrial part is wide, the components are complex, and the mark reaching treatment is not reliable by adopting the general biochemistry technology, firstly, the packaged wastewater in the industrial park is adjusted the pH value by mixing isotrope, and the impact load of the water quality and quantity is reduced; secondly, the biochemical property can be improved through the oxidation pretreatment, the removal rate of the organic matter is about 10-40 percent, the COD is reduced to 400-1000 mg/L, the biochemical property (B/C) can be improved by more than 0.3; thirdly, 0.01-0.1 percent of active carbon is added into a polytype main biochemical treatment system of activated sludge and biomembrane to form a PACT system, the removal rate of the organic matter is about 70-90 percent, the COD can be reduced to 120-150 mg/L; fourthly, suspended organic matter and inorganic matter are removed by coagulating sedimentation, the removal rate of the organic matter is about 10-30 percent, the COD can be stabilized under 100 mg/L, and the requirement (the COD is less than 100 mg/L) of the sewage complex discharge national standard (GB 8978-1996) is achieved.

The invention discloses a northern residential district sewage processing system and method. The system comprises a grating tank, an adjusting tank, a magnetic separation water purification unit and a constructed wetland unit. The grating tank, the adjusting tank, the magnetic separation water purification unit and the constructed wetland unit are connected in order through water pipes. According to water quality characteristics of northern residential district sewage, the sewage processing system combined with a magnetic separation water purification technology and a modularized constructed wetland technology is provided, processing advantages of the magnetic separation water purification technology and the modularized constructed wetland technology to pollutants are utilized fully, processing quota of the two novel technologies are distributed reasonably, removal of suspended organic matters, suspensions and total phosphor in sewage is mainly finished during the magnetic separation water purification technology process, and removal of the total nitrogen, ammonia nitrogen and dissolved organic matters is finished by the modularized constructed wetland. The problems are solved that a constructed wetland technology unit is employed alone, the land occupation area is large, obstruction is easy to happen inside the wetland, and ammonia nitrogen and total nitrogen are difficult to meet the water quality standard.

The invention belongs to the field of deep treatment and reuse of biochemical process tail water and particularly relates to a method for removing biochemical process tail water organic matters in wastewater by ultraviolet combined with chlorine. According to the technical scheme, the method is characterized by comprising the steps of I, adding a chlorine oxidant to wastewater biochemical process secondary effluent that is subjected to coagulating sedimentation to remove suspended organic matters, and stirring, wherein 5-350 mg/L of active chlorine generated by the chlorine oxidant is added; II, irradiating with ultraviolet for 1-60 min. According to the above scheme, the method degrades and mineralizes EfOM (effluent organic matters) through strong oxidizing power of hydroxyl radicals (HO.) and active chlorine (Cl., Cl.<-> and ClO.) by the aid of their co-oxidizing effect.

The invention discloses a method for preparing isooctyl thioglycolate by adopting tail liquid in the production process of O-alkyl-N-alkyl sulfide expelling carbamate, comprising the following steps:a. acidifying and purifying tail liquid, removing separated suspending organic matters; b. extracting the acidified liquid by an extracting agent, esterifying to obtain rough ester; c. carrying out reduced pressure distillation on the rough ester and obtaining the isooctyl thioglycolate. The method is characterized in that: in the extraction and esterification processes, isooctane is firstly takenas the extracting agent to extract and esterify the acidified liquid to obtain organic mixture; the organic mixture is taken as an extracting agent to extract and esterify the new acidified liquid; and the obtained organic mixture after extraction and esterification is taken as an extracting agent to extract and esterify the new acidified liquid at least once. The invention has the advantages ofreasonable production process, raw material saving, low production cost and high product quality and is a reasonable method for recycling the tail liquid in the production process of the O-alkyl-N-alkyl sulfide expelling carbamate.

The invention discloses a method and equipment for recycling textile printing and dyeing wastewater. The equipment includes an initial adsorption mechanism and an electrochemical catalysis mechanism. There is a cylinder cover, a reducer is installed in the middle of the cylinder cover, the output end of the reducer is connected with a stirring shaft extending into the inside of the mixing cylinder, and stirring blades for stirring the coke layer are distributed on the stirring shaft; the electrochemical catalytic mechanism includes The waste water treatment tank body is provided with a water inlet on the left end side wall of the waste water treatment tank body, and a water outlet is arranged on the right end side wall of the waste water treatment tank body. The inside of the waste water treatment tank body is located between the water inlet and the water outlet. An anode electrode plate and a cathode electrode plate are assembled, the process layout of the invention is reasonable, the decolorization effect on the printing and dyeing wastewater is good, the suspended organic matter in the wastewater can be effectively removed, and the decomposition and treatment efficiency of the macromolecular organic matter is high.

The invention discloses a toxicity reduction and recycling system and a treatment method for biotreated effluent in the printing and dyeing industry, and belongs to the technical field of deep treatment of printing and dyeing wastewater. The system comprises a V-shaped filtering pond, a middle water pond, a magnetic resin reactor, an anaerobic pond, a surface flow wetland and an ecological pond, wherein the magnetic resin reactor is reasonably combined with ecosystems such as the ecological pond and a constructed wetland; the filtering pond is used for removing suspended organic matters in the biotreated effluent by filtering in order to lower turbidity; magnetic resin is used for adsorbing soluble organic pollutants in the biotreated effluent in order to lower chromaticity and biological toxicity. An alternative anaerobic-aerobic process is formed by a pond-wetland-pond combination to further lower the concentration of organic matters, nitrogen, phosphorus and toxic pollutants in a water body in order to form a set of biotreated effluent recycling method which runs stably, makes effluent be up to surface water IV and US EPA (Environmental Protection Agency) wastewater biological toxicity standards, has a landscape function and is suitable for printing and dyeing textile zones.

The invention belongs to the technical field of industrial wastewater treatment and particularly relates to an acrylon wastewater deep treatment method based on a dry method. The acrylon wastewater deep treatment method based on the dry method comprises the steps that acrylon wastewater to be treated is pretreated through multi-medium filtration, so that suspension organic matter is removed; then the acrylon wastewater enters a nanofiltration system, recalcitrant organic matter and ammonia nitrogen in the wastewater are separated and concentrated so that produced water can be directly discharged according to the standard; denitrification treatment continues to be conducted on concentrated water generated by the nanofiltration system through a nitrosification-anaerobic ammonia oxidation system, then water subjected to denitrification treatment enters a heterogeneous-phase electro-catalysis unit to be subjected to an oxidation reaction, so that recalcitrant organic matter in the concentrated water is removed, and nanofiltrated concentrated water is discharged according to the standard. According to the acrylon wastewater deep treatment method based on the dry method, pollutants in the acrylon wastewater can be effectively degraded and removed, and technical feasibility is provided for acrylon wastewater deep treatment based on the dry method.

The invention discloses a method for preparing high-quality mercaptoacetic acid from a tail solution from O-alkyl-N-alkyl thinocarbamate production. The method comprises the following steps: (1) performing acidizing treatment on the tail solution by using an inorganic acid, and controlling the pH value to be 0.5-1.5; (2) leaving to stand for 6-48 hours, separating suspended organic matters, extracting by using an organic solvent, and extracting by using an extraction agent, thereby obtaining an extraction liquid, wherein the volume ratio of the total amount of the organic solvent to an acidifying liquid is (2.5:0.01)-(2.5:0.1), the organic solvent consists of 40-60wt% of glutaric acid diethyl ester and 40-060wt% of ethyl malonic acid diethyl ester, the volume ratio of the total amount of the extracting agent to a new acidifying liquid is (2:0.1)-(2:2), and the extracting agent is prepared by mixing n-amyl ether, isoamyl ether and sec-butyl methyl ether in a mass ratio of (1-3):(1-3):(1-3); (3) removing the solvent and water from the extraction liquid, thereby obtaining crude acid; (4) performing flash evaporation on the crude acid. The method is high in recycling rate, high in product purity, good in quality and simple in process.

The invention discloses a water quality purification spraying agent, which contains nano zinc oxide and a dispersant for enabling nano zinc oxide to form a multiphase flow in a solution, wherein nano zinc oxide has particle size d less than 100 nm. By adding nano zinc oxide to the water quality purification spraying agent, the water quality purification spraying agent can carry out photocatalysis effect under illumination and has strong oxidizing property. Serving as a strong oxidizer, the water quality purification spraying agent completes degradation of organic matters (or chlorine-containing substances), thereby degrading organic matters in bottom sludge and organic matters suspended in water of a culture pond and purifying water quality. Nano zinc oxide can generate conduction band electrons and valence band cavities under the illumination condition, and can react with surface adsorbed H2O or OH<-> ion to form hydroxyl with strong oxidizing property, thereby killing cells. At present, the turtle culture industry comprises two culture modes, namely greenhouse culture and earthen pond external pool culture. The nano zinc oxide water quality purification spraying agent not only can improve culture water bodies, but also has excellent purification action on the whole culture greenhouse, thereby integrally improving turtle living environment.

A process for the treatment of water comprises: a) Adding to the water an oxidizing agent in a stunning concentration, wherein the detention time of said agent between adding it to water and the subsequent steps of filtration and/or irradiation is up to about 90 seconds; b) filtering the oxidized water by a filtration system having a filtering size larger than the average size of suspended organic matter in the water; and c) exposing the oxidized and filtered water to irradiation.

The invention discloses a sludge-containing wastewater treatment method which comprises the following steps: (1) firstly removing large suspended solids in wastewater; (2) lifting the wastewater into an aerated grit chamber, and removing sand, coal cinder and other particles with high specific gravity in the sewage; (3) enabling the sewage to enter a circular primary sedimentation tank to be pre-treated, and removing fine suspended organic matters; (4) enabling the water to enter an aeration tank, enabling the water to enter a circular secondary sedimentation tank to perform mud-water separation, returning partial activated sludge to the aeration tank, disinfecting the effluent in a chlorination contact tank, and discharging the water into a water body through a Parshall flume; (5) mixing the sludge in the primary sedimentation tank, the aeration tank and the secondary sedimentation tank, and enabling the sludge to enter a sludge thickener; and (6) returning the supernatant in the sludge thickener to the primary sedimentation tank to be treated again, treating the sludge containing organic matters by a sludge digestion tank, dewatering the digested sludge by a belt filter press, airing the sludge, and outward transporting the sludge. The treatment method disclosed by the invention has the beneficial effects that the sludge separation rate reaches 80% or higher, and the wastewater emission is higher than the emission standard.

The invention relates to a machine for processing biogas residues and biogas slurry, which is characterized in that: a filtering device comprises rollers, a filter screen, a filter screen frame, side boards, a dirt discharge groove and a residue removal mechanism; both side walls of a box body are respectively and fixedly provided with the side boards; the side boards on the two side walls are fixedly connected with the side face of the filter screen frame from the side in a length direction of the box body; the two rollers are respectively fixed on bearing pedestals at upper and lower ends of the side boards of both sides through bearings; the rollers at the upper ends of the side boards are connected with a motor fixed on the box body through the bearings; a plurality of rotatable carrier roller components are uniformly arranged on the side boards of both sides between the upper and the lower rollers; the filter screen is sleeved between the upper and the lower rollers; the filter screen is arranged on the outer sides of the carrier roller components; the dirt discharge groove with a sewage draining exit on the side face of the box body is fixed on the side face of the side board opposite to the filter screen frame; and the residue removal mechanism is arranged between the tops of the two side boards on one side of the dirt discharge groove. The processing machine for the biogas residues and the biogas slurry has the advantages of durability, reliability and high filtering rate of suspended organic matter.

The embodiment of the invention discloses a buried sanitary sewage processing device. The device comprises a purification box, the purification box is connected with a deep purification cultivating tank through a pipeline, and partition plates are arranged in the purification box; the inside of the purification box is partitioned by the partition plates into an adjusting tank, a first filtering sedimentation tank, an anaerobic fermentation tank, a second filtering sedimentation tank and a disinfecting tank which are successively connected, the disinfecting tank is connected with the deep purification cultivating tank through a pipeline, the lower portion of the second filtering sedimentation tank is provided with a circulating pump, and the circulating pump is connected with the adjustingtank through a pipeline; a biological membrane plate is arranged in the anaerobic fermentation tank, the anaerobic fermentation tank is partitioned into upper and lower portions by the biological membrane plate, a partition plate is arranged on the upper area of the biological membrane plate, and the upper area of the biological membrane plate is partitioned into a liquid inlet area and a liquid outlet area through the partition plate; aeration devices are arranged on the lower area of the biological membrane plate and at the bottom of the adjusting tank. The device utilizes the principle of combining sedimentation and anaerobic fermentation for removing suspended organic matter in sanitary sewage and has the advantages that the sewage processing capacity is high, and the efficiency is high.

The invention discloses a treatment method of preserved mustard wastewater, which comprises the steps of 1) filtering high-salt preserved mustard wastewater through a solid-liquid separation unit, enabling waste liquid to enter an adjusting unit, and adjusting the pH value of the waste liquid to 6.5-8; 2) enabling the waste liquid to enter a circular reaction tank to remove organic matters, ammonia nitrogen, total nitrogen and total phosphorus in the waste liquid; 3) enabling effluent circularly treated by the circular reaction tank to enter a coagulating sedimentation unit for precipitating insoluble organic matters and fine particle suspended matters in the waste liquid; 4) enabling effluent treated by the coagulating sedimentation unit to enter an electrodialysis treatment unit, and separating sodium ions and chloride ions of NaCl in the waste liquid by adopting a membrane separation method to reduce the salinity of the waste liquid; and (5) enabling the effluent of the electrodialysis treatment unit to enter an anaerobic digestion treatment unit, enabling anaerobic microorganism compound strains added into the waste liquid to be in full contact with the waste liquid, and then discharging. After the suspended organic matters and inorganic matter particles are removed, more than 90% of salt in the wastewater is removed by utilizing electrodialysis equipment, so that the energy consumption and the cost of wastewater treatment are effectively reduced.

The invention discloses a three-effect fused rural ecological sewage treatment system and a three-effect fused rural ecological sewage treatment method. The system comprises a pre-treatment unit, a LJ-BL treatment unit, a LJ-MB treatment unit, a LJ-EL treatment unit and a sludge treatment unit. The pre-treatment unit removes suspended organic matters in household sewage by means of a precipitationand anaerobic fermentation principle, the BJ biochemical treatment unit degrades CODcr and BOD5 in the wastewater through an anaerobic pool and an aerobic tank, the MB treatment unit is used for treating sewage by combining efficient membrane separation with an activated sludge method, and the LJ-EL treatment unit further eliminates organic matters, heavy metals and nitrogen and phosphorus through an artificial wetland. The system has a good effluent effect, can meet afforestation and farm irrigation and can be directly reclaimed as the content of effluent suspended solids and turbidity are close to zero. Compared with a conventional treatment system, 40% of a land occupied area can be saved, and the landscape in a plant is good.

The invention relates to a clean state indicating method for a washing process. The clean state indicating method comprises the following steps: acquiring TOC parameters of a washing step; matching the cleanliness of the current washing step according to the TOC parameter of the current washing step; the configuration display area indicates the completion degree of the current washing step according to the cleanliness; the content of organic matters in water can be accurately reflected, not only can suspended organic matters be detected, but also most of general pigments, food stains, organic additives and detergents which are soluble in water can be detected, and the amount of dirt in washing water can be reflected through TOC detection, so that the cleanliness can be judged. The cleanliness can correspondingly indicate the completion degree of the washing step in the display area; a user can obviously and accurately know the washing process, the washing completion degree can be visually known, and finally the user experience is improved; in addition, the invention also relates to a corresponding system, a storage medium and a washing device.

The invention discloses a treatment method of low-concentration rubber processing wastewater difficult to biodegrade, and belongs to the technical field of chemical wastewater treatment. The inventionprovides a treatment method of rubber processing wastewater difficult to biodegrade. The method comprises the following steps: mixing production wastewater to be treated, removing floating oil organic matters through air floatation treatment, removing colloid organic matters through flocculent precipitation, carrying out catalytic ozonation on the wastewater, mixing effluent with domestic sewageand initial rainwater, carrying out nitrification and denitrification treatment, finally feeding into a coagulating sedimentation tank, carrying out secondary coagulating sedimentation, and discharging. The wastewater is pretreated to remove floating oil and a large amount of suspended organic matters, and the molecular structure of the non-biodegradable organic matters is further destroyed through catalytic ozonation, so that the biodegradability of the wastewater is improved, and the COD and ammonia nitrogen of the wastewater are reduced through nitrification and denitrification treatment, so that the effluent reaches the enterprise reuse water standard, and zero emission of enterprises is realized.

The invention provides a process for treating chemical wastewater by phenolphthalein coagulation, belonging to the field of energy conservation and environment protection. The process comprises the steps as follows: firstly, feeding an amount of alkali liquor to sewage to regulate the pH value of the sewage to 9-10 and feeding a phenolphthalein solution prepared from alcohol, wherein phenolphthalein is intrinsically easily soluble in the alcohol and is insoluble in water, and when the phenolphthalein solution is fed to the sewage, phenolphthalein is separated out greatly to form plenty of colloidal insoluble substances due to the effect that the alcohol is soluble in the water; then, feeding 0.3-1.2% of coagulant FeSO4 and 0.01-0.03% of aided mixer polyacrylamide (PAM) and then stirring uniformly to form a lot of high-density flocculent easily-settled complexes; and settling the sewage by an inclined-tube sedimentation tank, thereby removing suspended organic matters in the sewage. According to the process, the treatment efficiency can be improved by 10-20% in general; and meanwhile, as an amount of phenolphthalein with low cost is fed, the concentration of the suspended matters in the sewage is increased and the addition of the coagulant is reduced; and therefore, the operating cost can be saved by 5-10%.