CN109320017B - Method for treating landfill leachate - Google Patents
Method for treating landfill leachate Download PDFInfo
- Publication number
- CN109320017B CN109320017B CN201811304907.1A CN201811304907A CN109320017B CN 109320017 B CN109320017 B CN 109320017B CN 201811304907 A CN201811304907 A CN 201811304907A CN 109320017 B CN109320017 B CN 109320017B
- Authority
- CN
- China
- Prior art keywords
- landfill leachate
- flocculant
- leachate
- garbage
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002131 composite material Substances 0.000 claims abstract description 22
- 239000004927 clay Substances 0.000 claims abstract description 12
- 229920001661 Chitosan Polymers 0.000 claims abstract description 11
- 125000000129 anionic group Chemical group 0.000 claims abstract description 11
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 11
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims description 26
- 229920002101 Chitin Polymers 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 23
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 15
- 238000005345 coagulation Methods 0.000 claims description 13
- 230000015271 coagulation Effects 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 239000010802 sludge Substances 0.000 claims description 11
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 10
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 239000003818 cinder Substances 0.000 claims description 10
- 239000003245 coal Substances 0.000 claims description 10
- 239000010881 fly ash Substances 0.000 claims description 10
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical group Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 10
- 239000004571 lime Substances 0.000 claims description 10
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 10
- 229910021529 ammonia Inorganic materials 0.000 claims description 9
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 238000004061 bleaching Methods 0.000 claims description 5
- 230000006196 deacetylation Effects 0.000 claims description 5
- 238000003381 deacetylation reaction Methods 0.000 claims description 5
- 230000009615 deamination Effects 0.000 claims description 5
- 238000006481 deamination reaction Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- GKIPXFAANLTWBM-UHFFFAOYSA-N epibromohydrin Chemical compound BrCC1CO1 GKIPXFAANLTWBM-UHFFFAOYSA-N 0.000 claims description 5
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 5
- 230000001376 precipitating effect Effects 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 238000001694 spray drying Methods 0.000 claims description 5
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 claims description 5
- 238000011017 operating method Methods 0.000 claims description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 10
- 239000000126 substance Chemical group 0.000 abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 6
- 239000000084 colloidal system Substances 0.000 abstract description 4
- 150000002500 ions Chemical class 0.000 abstract description 4
- 239000002244 precipitate Substances 0.000 abstract description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 230000009920 chelation Effects 0.000 abstract description 2
- 230000001687 destabilization Effects 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009935 nitrosation Effects 0.000 description 2
- 238000007034 nitrosation reaction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical group [N].N CVTZKFWZDBJAHE-UHFFFAOYSA-N 0.000 description 1
- 239000003181 biological factor Substances 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a method for treating landfill leachate, which adopts an inorganic flocculant and an organic flocculant, wherein the inorganic flocculant is a composite inorganic flocculant mainly composed of activated clay, has a water treatment flocculant for reducing ammonia nitrogen in water, can remove nitrogen and can precipitate suspended matters; the organic flocculant is a composite organic flocculant mainly composed of polyacrylamide, anionic polyacrylamide is combined with heavy metal ions to form insoluble precipitates, and chitosan in the formula is an anionic macromolecular flocculant and has the functions of electric neutralization, adsorption bridging and metal chelation. Chitosan is compounded with activated carbon, and a chemical bridge is formed between anionic chitosan and porous activated carbon to neutralize and reduce charges on the surface of the colloid, thereby being beneficial to destabilization of the colloid; the formula has the function of reducing heavy metal ions and other pollutants in water. The invention can stably treat the garbage percolate of the garbage landfill with complex components and variable changes, and the garbage percolate reaches the discharge standard.
Description
Technical Field
The invention relates to a garbage treatment method, in particular to a method for treating garbage leachate.
Background
The landfill leachate is high-concentration wastewater which is formed by deducting the saturated water holding capacity of garbage and a soil covering layer from water contained in the garbage in a garbage landfill, rain, snow and water entering the landfill and other water and passing through the garbage layer and the soil covering layer. Landfill leachate has the characteristics different from general municipal sewage: the concentration of pollutants is extremely high, and the COD and the ammonia nitrogen concentration of leachate of some landfill sites can respectively reach nearly one hundred thousand and nearly ten thousand mg/L. The most prominent characteristics of the percolate are three: firstly, the ammonia nitrogen concentration is high, and the inhibition effect on the propagation and growth of microorganisms is achieved; secondly, the concentration of phosphorus is low; thirdly, the water quality changes non-periodically and the change range is large, so that the wastewater treatment device is difficult to adapt. The combined treatment of the landfill leachate and the municipal sewage is the simplest method, but a landfill site is usually far away from towns, so the combined treatment of the landfill leachate and the municipal sewage has certain specific difficulties and often has to be treated independently. The treatment of landfill leachate in municipal landfill sites has been a very difficult problem in the design, operation and management of landfill sites. Landfill leachate is the product of the gravity flow of liquids in landfills, mainly from precipitation and the inherent water content of the landfill itself. The properties of the percolate vary over a considerable range, since many factors in the flow of the liquid may influence the properties of the percolate, including physical, chemical and biological factors. Generally, the pH value is between 4 and 9, the COD is in the range of 4000 to 100000mg/L, the BOD5 is 200 to 10000mg/L, and the concentration of heavy metals is basically consistent with that of heavy metals in municipal sewage. Landfill leachate of municipal refuse landfill is high-concentration organic wastewater with complex components, and if the high-concentration organic wastewater is directly discharged into the environment without treatment, serious environmental pollution is caused. For the purpose of protecting the environment, it is essential to treat the leachate.
The existing landfill leachate treatment methods are mainly divided into three categories, namely a biological method, a physical and chemical method and a land method. The anaerobic treatment in the biological treatment method comprises an upflow anaerobic sludge blanket UASB, an anaerobic baffle reactor ABR, an anaerobic pond, EGSB, IC and the like; the aerobic treatment comprises an aerobic aeration pond, an activated sludge process, a biological rotating disc, a trickling filter and the like, and anaerobic/aerobic (A/O) mixed treatment. The physical and chemical methods mainly comprise chemical coagulation and precipitation, activated carbon adsorption, chemical oxidation, catalytic oxidation, membrane treatment and the like. Land treatment such as artificial wetland and the like is mainly carried out by filtering soil particles, ion exchange adsorption, precipitation and the like. The high-concentration ammonia nitrogen wastewater of the landfill leachate has large discharge amount, complex components, strong toxicity, great harm to the environment and great treatment difficulty, so that the pollution and the treatment of the ammonia nitrogen wastewater are always highly valued in the field of environmental protection all over the world. Landfill leachate with extremely strong pollution generated in the landfill process is easy to infiltrate and pollute underground water, particularly the special karst landform in the southwest region of China is used, the ecological environment of the underground water is fragile, most of drinking water sources of local residents are underground water, and if the landfill leachate is not properly treated, the ecological environment and the human health are greatly damaged, so the effective treatment of the landfill leachate is one of the difficulties in the field of domestic and foreign environmental engineering at present. In recent years, the environment-friendly industry is greatly supported by the country, the environment requirements of residents are improved along with the improvement of the living standard of people, the design scheme of the refuse landfill needs to be optimized, and the emission standard of newly built and newly expanded landfill sites is required to be implemented in GB 16889-2008.
In recent years, a new CANON process (a complete automatic ammonium-um removal over nitrate process in biomembrane) is used for treating the percolate of the refuse landfill and obtains good treatment effect. The CANON process is a novel biological denitrification process, and the process is characterized in that nitrosation and anaerobic ammonia oxidation are realized by controlling dissolved oxygen in a single reactor or a biological membrane, so that the aim of denitrification is fulfilled. Under the condition of micro-oxygen, nitrite bacteria oxidize ammonia nitrogen part into nitrous acid, and consumption oxidation creates an anaerobic environment required by an ANAMMOX process; the nitrous acid produced reacts with part of the remaining ammonia nitrogen in an ANAMMOX reaction to produce nitrogen, and the stoichiometric equation of the CANON process is as follows: nitrosation: 1NH +1.5O2 → 1NO + H + H2O
ANAMMOX：1NH3+1.32NO+H→1.02N2+0.26NO+2H2O
CANON：1NH+0.85O2→0.435N2+0.13NO+0.14H+1.3H2O
In terms of reaction format, the CANON process is a combination of the SHARON process and the ANAMMOX process. The CANON technical process is controlled by firstly realizing dynamic balance between aerobic ammonia oxidation and anaerobic ammonia oxidation, and the anaerobic ammonia oxidation bacteria have slow growth rate and long multiplication time and can be recovered only after the growth environment is damaged; while DO and ASL are two major control parameters, to maintain sludge stability, excessive concentrations of O2 and NO2-N should be avoided, which can be achieved by controlling the redox potential and DO concentration. The CANON process does not need to add organic carbon source substances in the operation process, thereby effectively overcoming the problem that the traditional nitrification-denitrification process needs to use organic matters as electron donors to support denitrification, saving 100 percent of carbon source and being particularly suitable for treating high-concentration ammonia nitrogen wastewater with low C/N; because the process adopts a restrictive oxygen supply mode, the DO concentration in the reactor is lower, and 60 percent of aeration consumption can be saved; the process can complete the whole conversion process from NH-N to N2 in one reactor, so that the flow of biological nitrogen removal is very short, and the corresponding construction, operation and management costs are expected to be greatly reduced.
However, because the landfill leachate in the landfill site has complex components, the CANON process is not stable in treatment in the face of the high ammonia nitrogen landfill leachate which has infrequent changes, and the treatment effect often cannot meet the design requirements.
Disclosure of Invention
The invention aims to solve the defects that the existing landfill leachate has complex components, the CANON process faces the constantly-changed high ammonia nitrogen landfill leachate, the treatment stability is not good, and the treatment effect often cannot meet the design requirement, and provides a method for treating the landfill leachate which has complex components and constantly-changed landfill leachate, and can be used for stably treating the landfill leachate which reaches the standard and is discharged.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for treating landfill leachate, comprising the following steps:
the method comprises the following steps: preparing a garbage leachate treatment material from coal cinder, fly ash and a modified chitin mixture, and pouring the garbage leachate treatment material and lime into a garbage leachate neutralization tank;
step two: conveying the landfill leachate treated in the step one to an ammonia stripping tower for deamination;
step three: leading the landfill leachate treated in the step two into an anaerobic tank;
step four: guiding the landfill leachate treated in the third step into an SBR water quantity regulating tank, and pumping the landfill leachate into parallel SBR reaction tanks for biological reaction;
step five: guiding the landfill leachate treated in the step four into a coagulation tank, and adding a composite inorganic flocculant and a composite organic flocculant for reaction; and (4) incinerating the sludge generated by the coagulation tank after concentration.
Preferably, the mass ratio of the coal cinder, the fly ash and the modified chitin is 3-5: 2-3: 1; the mass ratio of the landfill leachate treatment material to the lime is 3: 1.
Preferably, the composite inorganic flocculant in the fifth step is added with 1-5wt% of the total weight of the composition of activated clay, ceramsite, electrolytic aluminum waste residue and ferric trichloride, and the mass ratio of the activated clay, the ceramsite, the electrolytic aluminum waste residue and the ferric trichloride is 5: 3: 1: 1.3.
Preferably, in the fifth step, a composite organic flocculant which mainly comprises polyacrylamide is added into the coagulation tank, the addition amount is 2-3wt%, and the formula is as follows: 40-70 wt% of anionic polyacrylamide, 25-55 wt% of powdered activated carbon and 1-5wt% of chitosan.
Preferably, the operating procedures of the parallel SBR reaction tanks are as follows: feeding water for 45-50 min → aerating for 9-12 h → precipitating for 60min → draining for 60min, and discharging mud after draining, wherein the mud is 1/10 of the total water inflow each time, the mud age is 20-30 d, and the operation lasts for 2-3 cycles every day.
Preferably, the modified chitin is prepared by adopting the following process: adding 20-35 parts of chitin with the deacetylation degree of 35-45% into 140 parts of 2.5-3.5mol/L sodium hydroxide solution for soaking for 1-3 days, filtering, washing, adding hydrogen peroxide for bleaching, filtering, washing, drying, adding 1-3 parts of epoxy bromopropane, 0.05-0.09 part of maleic anhydride, 0.5-0.9 part of trimethylamine aqueous solution, 0.001-0.003 part of azodiisobutyronitrile and 0.01-0.05 part of tetrabutylammonium bromide, stirring at the stirring speed of 400-700r/min and the stirring temperature of 150-170 ℃ for 15-35min, and spray-drying to obtain the modified chitin.
Preferably, the anaerobic tank adopts common anaerobic nitrification at 35 ℃ and the load of 1 kgCOD/(m)3D), residence time 10 d.
Compared with the prior art, the invention has the beneficial effects that: because the technical scheme of the invention adopts the inorganic flocculant and the organic flocculant, the inorganic flocculant is a composite inorganic flocculant mainly composed of activated clay, and the flocculant for water treatment for reducing ammonia nitrogen in water can not only denitrify, but also precipitate suspended matters; the organic flocculant is a composite organic flocculant mainly composed of polyacrylamide, anionic polyacrylamide is combined with heavy metal ions to form insoluble precipitates, and chitosan in the formula is an anionic macromolecular flocculant and has the functions of electric neutralization, adsorption bridging and metal chelation. Chitosan is compounded with activated carbon, and a chemical bridge is formed between anionic chitosan and porous activated carbon to neutralize and reduce charges on the surface of the colloid, thereby being beneficial to destabilization of the colloid; the formula has the function of reducing heavy metal ions and other pollutants in water. The invention can stably treat the garbage percolate of the garbage landfill with complex components and variable changes, and the garbage percolate reaches the discharge standard.
Detailed Description
The invention is further explained below with reference to specific examples:
example 1
A method for treating landfill leachate, comprising the following steps:
the method comprises the following steps: preparing a garbage leachate treatment material from coal cinder, fly ash and a modified chitin mixture, and pouring the garbage leachate treatment material and lime into a garbage leachate neutralization tank; the mass ratio of the coal cinder, the fly ash and the modified chitin is 3: 2: 1; the mass ratio of the landfill leachate treatment material to the lime is 3: 1; the modified chitin is prepared by adopting the following process: adding 20 parts of chitin with the deacetylation degree of 35% into 100 parts of a 2.5mol/L sodium hydroxide solution, soaking for 1 day, filtering, washing, adding hydrogen peroxide for bleaching, filtering, washing, drying, adding 1 part of epoxy bromopropane, 0.05 part of maleic anhydride, 0.5 part of trimethylamine aqueous solution, 0.001 part of azobisisobutyronitrile and 0.01 part of tetrabutylammonium bromide, stirring under pressure at the stirring speed of 400r/min and the stirring temperature of 150 ℃, stirring for 15min, and spray-drying to obtain modified chitin;
step two: conveying the landfill leachate treated in the step one to an ammonia stripping tower for deamination;
step three: leading the landfill leachate treated in the step two into an anaerobic tank; the anaerobic tank adopts common anaerobic nitrification at 35 ℃ and the load of 1 kgCOD/(m)3D), residence time 10 d;
step four: guiding the landfill leachate treated in the third step into an SBR water quantity regulating tank, and pumping the landfill leachate into parallel SBR reaction tanks for biological reaction; the operation procedure of the parallel SBR reaction tank is as follows: feeding water for 45min → aerating for 9h → precipitating for 60min → draining water for 60min, and discharging mud after draining water, wherein the mud is 1/10 of the total water inflow each time, the mud age is 20d, and the operation is carried out for 2 periods each day;
step five: guiding the landfill leachate treated in the step four into a coagulation tank, and adding a composite inorganic flocculant and a composite organic flocculant for reaction; the sludge generated by the coagulation tank is centralized and then is incinerated; the composite inorganic flocculant is added in an amount of 1wt% and comprises a composition of activated clay, ceramsite, electrolytic aluminum waste residue and ferric trichloride, wherein the mass ratio of the activated clay to the ceramsite to the electrolytic aluminum waste residue to the ferric trichloride is 5: 3: 1: 1.3; the compound organic flocculant is added in an amount of 2 wt%, and the formula comprises: 40wt% of anionic polyacrylamide, 55wt% of powdered activated carbon and 5wt% of chitosan.
Example 2
A method for treating landfill leachate, comprising the following steps:
the method comprises the following steps: preparing a garbage leachate treatment material from coal cinder, fly ash and a modified chitin mixture, and pouring the garbage leachate treatment material and lime into a garbage leachate neutralization tank; the mass ratio of the coal cinder, the fly ash and the modified chitin is 4: 3: 1; the mass ratio of the landfill leachate treatment material to the lime is 3: 1; the modified chitin is prepared by adopting the following process: adding 23 parts of chitin with deacetylation degree of 38% into 125 parts of sodium hydroxide solution with concentration of 2.8mol/L, soaking for 2 days, filtering, washing, adding hydrogen peroxide for bleaching, filtering, washing, drying, adding 2 parts of epoxy bromopropane, 0.6 part of maleic anhydride, 0.8 part of trimethylamine aqueous solution, 0.002 part of azodiisobutyronitrile and 0.04 part of tetrabutylammonium bromide, stirring under pressure at the stirring speed of 500r/min and the stirring temperature of 168 ℃, stirring for 24min, and spray drying to obtain modified chitin;
step two: conveying the landfill leachate treated in the step one to an ammonia stripping tower for deamination;
step three: leading the landfill leachate treated in the step two into an anaerobic tank; the anaerobic pool adopts common anaerobic nitrificationAt 35 ℃ and a load of 1 kgCOD/(m)3D), residence time 10 d;
step four: guiding the landfill leachate treated in the third step into an SBR water quantity regulating tank, and pumping the landfill leachate into parallel SBR reaction tanks for biological reaction; the operation procedure of the parallel SBR reaction tank is as follows: feeding water for 48min → aerating for 11h → precipitating for 60min → draining water for 60min, and discharging mud after draining water, wherein the mud is 1/10 of the total water inflow each time, the mud age is 25d, and the operation is carried out for 3 periods each day;
step five: guiding the landfill leachate treated in the step four into a coagulation tank, and adding a composite inorganic flocculant and a composite organic flocculant for reaction; the sludge generated by the coagulation tank is centralized and then is incinerated; the composite inorganic flocculant is added in an amount of 3wt% and comprises a composition of activated clay, ceramsite, electrolytic aluminum waste residue and ferric trichloride, wherein the mass ratio of the activated clay to the ceramsite to the electrolytic aluminum waste residue to the ferric trichloride is 5: 3: 1: 1.3; the compound organic flocculant is added in an amount of 2.5 wt%, and the formula comprises: 70wt% of anionic polyacrylamide, 25wt% of powdered activated carbon and 5wt% of chitosan.
Example 3
A method for treating landfill leachate, comprising the following steps:
the method comprises the following steps: preparing a garbage leachate treatment material from coal cinder, fly ash and a modified chitin mixture, and pouring the garbage leachate treatment material and lime into a garbage leachate neutralization tank; the mass ratio of the coal cinder, the fly ash and the modified chitin is 5: 3: 1; the mass ratio of the landfill leachate treatment material to the lime is 3: 1; the modified chitin is prepared by adopting the following process: adding 35 parts of chitin with deacetylation degree of 45% into 140 parts of sodium hydroxide solution with concentration of 3.5mol/L, soaking for 3 days, filtering, washing, adding hydrogen peroxide for bleaching, filtering, washing, drying, adding 3 parts of epoxy bromopropane, 0.09 part of maleic anhydride, 0.9 part of trimethylamine aqueous solution, 0.003 part of azodiisobutyronitrile and 0.05 part of tetrabutylammonium bromide, stirring under pressure at the stirring speed of 700r/min and the stirring temperature of 170 ℃ for 35min, and spray-drying to obtain modified chitin;
step two: conveying the landfill leachate treated in the step one to an ammonia stripping tower for deamination;
step three: leading the landfill leachate treated in the step two into an anaerobic tank; the anaerobic tank adopts common anaerobic nitrification at 35 ℃ and the load of 1 kgCOD/(m)3D), residence time 10 d;
step four: guiding the landfill leachate treated in the third step into an SBR water quantity regulating tank, and pumping the landfill leachate into parallel SBR reaction tanks for biological reaction; the operation procedure of the parallel SBR reaction tank is as follows: feeding water for 50min → aerating for 12h → precipitating for 60min → draining water for 60min, and discharging mud after draining water, wherein the mud is 1/10 of the total water inflow each time, the mud age is 30d, and the operation is carried out for 3 periods each day;
step five: guiding the landfill leachate treated in the step four into a coagulation tank, and adding a composite inorganic flocculant and a composite organic flocculant for reaction; the sludge generated by the coagulation tank is centralized and then is incinerated; the composite inorganic flocculant is added in an amount of 5wt% and comprises a composition of activated clay, ceramsite, electrolytic aluminum waste residue and ferric trichloride, wherein the mass ratio of the activated clay to the ceramsite to the electrolytic aluminum waste residue to the ferric trichloride is 5: 3: 1: 1.3; the compound organic flocculant is added in an amount of 3wt%, and the formula comprises: 60 wt% of anionic polyacrylamide, 39 wt% of powdered activated carbon and 1wt% of chitosan.
100m of landfill leachate of certain refuse landfill3The components of the wastewater are shown in Table 1
TABLE 1 composition of wastewater
| COD | mg/L | 50000 |
| BOD3 | mg/L | 3800 |
| NH3-N | mg/L | 3500 |
| SS | mg/L | 500 |
The water quality test after the treatment of the invention is shown in table 2.
TABLE 2 Water quality testing
| Item | Unit of | Example 1 Water quality | Example 2 Water quality | Example 3 Water quality |
| COD | mg/L | 30 | 28 | 25 |
| BOD3 | mg/L | 5 | 4.8 | 4.5 |
| NH3-N | mg/L | 3.1 | 2.9 | 2.8 |
| SS | mg/L | 2.5 | 2.3 | 2.1 |
| Copper (Cu) | mg/L | Not detected out | Not detected out | Not detected out |
| Nickel (II) | mg/L | Not detected out | Not detected out | Not detected out |
| Lead (II) | mg/L | Not detected out | Not detected out | Not detected out |
| Cadmium (Cd) | mg/L | Not detected out | Not detected out | Not detected out |
| Mercury | mg/L | Not detected out | Not detected out | Not detected out |
The detailed description of the invention is not set forth in detail in order to not unnecessarily obscure the present invention.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (5)
1. A method for treating landfill leachate is characterized by comprising the following steps:
the method comprises the following steps: preparing a garbage leachate treatment material from coal cinder, fly ash and a modified chitin mixture, and pouring the garbage leachate treatment material and lime into a garbage leachate neutralization tank;
the mass ratio of the coal cinder, the fly ash and the modified chitin is 3-5: 2-3: 1; the mass ratio of the landfill leachate treatment material to the lime is 3: 1;
the modified chitin is prepared by adopting the following process: adding 20-35 parts of chitin with the deacetylation degree of 35-45% into 140 parts of 2.5-3.5mol/L sodium hydroxide solution for soaking for 1-3 days, filtering, washing, adding hydrogen peroxide for bleaching, filtering, washing, drying, adding 1-3 parts of epoxy bromopropane, 0.05-0.09 part of maleic anhydride, 0.5-0.9 part of trimethylamine aqueous solution, 0.001-0.003 part of azodiisobutyronitrile and 0.01-0.05 part of tetrabutylammonium bromide, stirring at the stirring speed of 400-700r/min and the stirring temperature of 150-170 ℃ for 15-35min, and spray-drying to obtain modified chitin;
step two, sending the landfill leachate treated in the step one to an ammonia stripping tower for deamination;
step three, guiding the landfill leachate treated in the step two into an anaerobic tank;
step four, guiding the landfill leachate treated in the step three into an SBR water quantity regulating tank, and pumping the landfill leachate into parallel SBR reaction tanks for biological reaction;
step five, guiding the landfill leachate treated in the step four into a coagulation tank, and adding a composite inorganic flocculant and a composite organic flocculant for reaction; and (4) incinerating the sludge generated by the coagulation tank after concentration.
2. The method for treating landfill leachate of claim 1, wherein in step five, the amount of the composite inorganic flocculant is 1-5wt%, and the composite inorganic flocculant comprises activated clay: ceramsite: electrolytic aluminum waste residue: composition of ferric trichloride, activated clay: ceramsite: electrolytic aluminum waste residue: the mass ratio of ferric trichloride is 5: 3: 1: 1.3.
3. the method for treating landfill leachate of claim 1, wherein in step five, a composite organic flocculant mainly composed of polyacrylamide is added into the coagulation tank, and the addition amount is 2-3wt%, and the formula comprises 40-70 wt% of anionic polyacrylamide, 25-55 wt% of powdered activated carbon, and 1-5wt% of chitosan.
4. The method for treating landfill leachate according to claim 1, wherein the operating procedure of the parallel SBR reaction tanks is as follows: feeding water for 45-50 min → aerating for 9-12 h → precipitating for 60min → draining for 60min, and discharging sludge after draining, wherein the sludge is 1/10 of the total water inflow each time, the sludge age is 20-30 d, and the operation lasts for 2-3 cycles each day.
5. The method for treating landfill leachate of claim 1, wherein the anaerobic tank employs common anaerobic nitrification at 35 ℃ with a load of 1 kgCOD/(m)3D), residence time 10 d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811304907.1A CN109320017B (en) | 2018-11-02 | 2018-11-02 | Method for treating landfill leachate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811304907.1A CN109320017B (en) | 2018-11-02 | 2018-11-02 | Method for treating landfill leachate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109320017A CN109320017A (en) | 2019-02-12 |
| CN109320017B true CN109320017B (en) | 2021-09-17 |
Family
ID=65260894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811304907.1A Active CN109320017B (en) | 2018-11-02 | 2018-11-02 | Method for treating landfill leachate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109320017B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115072851A (en) * | 2022-08-19 | 2022-09-20 | 山东诺尔生物科技有限公司 | Landfill leachate treating agent and preparation method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116425286A (en) * | 2023-04-14 | 2023-07-14 | 深圳佳国盛环保控股有限公司 | Method for treating percolate membrane concentrate by using composite flocculant |
| CN116589149B (en) * | 2023-07-14 | 2023-09-29 | 湖南环宏环保科技有限公司 | Advanced treatment method of garbage squeeze liquid |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002014227A1 (en) * | 2000-08-16 | 2002-02-21 | Lorenz Guenter | Method for purifying waste water, and purification plant for carrying out said method |
| CN1611450A (en) * | 2003-10-31 | 2005-05-04 | 中国石油化工股份有限公司 | Waste water purifying agent, and its preparing method and use |
| CN101864051A (en) * | 2010-06-03 | 2010-10-20 | 中国热带农业科学院农产品加工研究所 | Maleic anhydride acidation chitosan salt/nature rubber graft copolymer and preparation method thereof |
| CN102329057A (en) * | 2011-09-09 | 2012-01-25 | 杭州江南科学研究院有限公司 | Method for treating high concentration ammonia nitrogen landfill leachate |
| US20120085705A1 (en) * | 2007-08-14 | 2012-04-12 | Earth Renaissance Technologies, Llc | Wastewater chemical/biological treatment method for open water discharge |
| CN105251462A (en) * | 2015-11-11 | 2016-01-20 | 姜捷 | Garbage penetrating fluid efficient wastewater treating agent based on modified fly ash and preparation method |
| CN108588882A (en) * | 2018-05-09 | 2018-09-28 | 东南大学 | A kind of industrial residue based composite fibre and preparation method thereof |
-
2018
- 2018-11-02 CN CN201811304907.1A patent/CN109320017B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002014227A1 (en) * | 2000-08-16 | 2002-02-21 | Lorenz Guenter | Method for purifying waste water, and purification plant for carrying out said method |
| CN1611450A (en) * | 2003-10-31 | 2005-05-04 | 中国石油化工股份有限公司 | Waste water purifying agent, and its preparing method and use |
| US20120085705A1 (en) * | 2007-08-14 | 2012-04-12 | Earth Renaissance Technologies, Llc | Wastewater chemical/biological treatment method for open water discharge |
| CN101864051A (en) * | 2010-06-03 | 2010-10-20 | 中国热带农业科学院农产品加工研究所 | Maleic anhydride acidation chitosan salt/nature rubber graft copolymer and preparation method thereof |
| CN102329057A (en) * | 2011-09-09 | 2012-01-25 | 杭州江南科学研究院有限公司 | Method for treating high concentration ammonia nitrogen landfill leachate |
| CN105251462A (en) * | 2015-11-11 | 2016-01-20 | 姜捷 | Garbage penetrating fluid efficient wastewater treating agent based on modified fly ash and preparation method |
| CN108588882A (en) * | 2018-05-09 | 2018-09-28 | 东南大学 | A kind of industrial residue based composite fibre and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115072851A (en) * | 2022-08-19 | 2022-09-20 | 山东诺尔生物科技有限公司 | Landfill leachate treating agent and preparation method thereof |
| CN115072851B (en) * | 2022-08-19 | 2022-11-11 | 山东诺尔生物科技有限公司 | Landfill leachate treating agent and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109320017A (en) | 2019-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108483655B (en) | Method for deep denitrification by coupling shortcut nitrification and denitrification with anaerobic ammonia oxidation and sulfur autotrophic denitrification | |
| CN102329057B (en) | Method for treating high concentration ammonia nitrogen landfill leachate | |
| CN105906154B (en) | A kind of method of the recycling treatment recycling of board wastewater | |
| CN107032580A (en) | A kind of sludge dewatering agent and its application method | |
| CN109320017B (en) | Method for treating landfill leachate | |
| CN102897979A (en) | Treatment method of coking waste water | |
| CN101993169A (en) | Treatment method of sintering flue gas desulphurization wastewater | |
| US20170066668A1 (en) | Highly effective sewage treatment based on regulation and control of directed electron flow and apparatus thereof | |
| CN110395851B (en) | High-altitude town sewage treatment method based on nitrogen and phosphorus capture and completely autotrophic nitrogen removal | |
| CN103819061A (en) | Physicochemical and biochemical combined treatment technology for flue gas desulfurization sewage and device thereof | |
| US20130112617A1 (en) | Redox wastewater biological nutrient removal treatment method | |
| CN103449661A (en) | Method for treating polyether wastewater | |
| CN109678276B (en) | Method for treating cow dung fermented biogas slurry by ozone flocculation combination | |
| CN203754565U (en) | Device for combined physicochemical treatment and biochemical treatment of flue gas desulfurization wastewater | |
| CN109384306A (en) | A kind of high calcium high-salt sewage denitrogenation takes off the treatment process of COD | |
| CN110642478A (en) | Coupled treatment system and method for coking phenol-cyanogen wastewater by biochemical method and physicochemical method | |
| CN105502768A (en) | Innocent treatment method of potato starch wastewater | |
| CN212504490U (en) | Landfill leachate treatment device | |
| CN215559684U (en) | Novel treatment system for landfill leachate | |
| CN215559585U (en) | Purification system of MBR play water that landfill leachate handled | |
| CN101665307B (en) | Rubbish leachate treatment method | |
| CN212222737U (en) | Pesticide effluent treatment plant | |
| TW201221484A (en) | Method and apparatus for sludge treatment and use thereof in sewage biotreatment | |
| CN112694225A (en) | Novel treatment system and purification method for landfill leachate | |
| CN111995177A (en) | Method for full-quantitative treatment of landfill leachate through electron beam irradiation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240418 Address after: 401122 No. 107, Datagu Middle Road, Xiantao Street, Yubei District, Chongqing Patentee after: Chongqing Super Star Technology Co.,Ltd. Country or region after: China Address before: 316100 plot C2-10, Xiaohui Industrial Zone, Putuo marine science and Technology Industrial Park, Putuo District, Zhoushan City, Zhejiang Province Patentee before: Zhejiang Ocean University Country or region before: China |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240424 Address after: 528411, Block 12, First Floor, No. 10 Futian 6th Road, Gangkou Town, Zhongshan City, Guangdong Province Patentee after: Guangdong Huineng Xinbang Ecological Environment Technology Co.,Ltd. Country or region after: China Address before: 401122 No. 107, Datagu Middle Road, Xiantao Street, Yubei District, Chongqing Patentee before: Chongqing Super Star Technology Co.,Ltd. Country or region before: China |