CN110615550A - Water recycling technology for fine garbage sorting process - Google Patents
Water recycling technology for fine garbage sorting process Download PDFInfo
- Publication number
- CN110615550A CN110615550A CN201910739179.5A CN201910739179A CN110615550A CN 110615550 A CN110615550 A CN 110615550A CN 201910739179 A CN201910739179 A CN 201910739179A CN 110615550 A CN110615550 A CN 110615550A
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- China
- Prior art keywords
- water
- treatment system
- garbage
- sorting
- treated
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Classifications
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- 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
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- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- 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
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- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- 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
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a technology for recycling process water for finely classifying and sorting garbage, which comprises a process water tank to be treated, wherein the process water tank to be treated is connected with the water outlet end of a garbage treatment system, the water outlet end of the process water tank to be treated is connected with a water treatment system, and the water outlet end of the water treatment system is connected with the water inlet end of the garbage treatment system to form circulating water. The invention utilizes the deodorization capability and strong oxidizing property of ozone and the characteristics of high concentration, fast diffusion and uniform dispersion of micro-nano bubbles in water to quickly modify circulating water, and can realize the recycling of process circulating water in the fine garbage sorting and sorting process.
Description
The technical field is as follows:
the invention relates to the technical field of garbage treatment, in particular to a technology for recycling process water for finely classifying and sorting garbage.
Background art:
in the comprehensive resource disposal technology of garbage, the fine classification and sorting of the garbage is the most critical step. And the refined RDF with low water content, low ash content and no metal and inorganic particles cannot be obtained without fine classification and sorting of garbage, and the yield and the quality of main pyrolysis products (pyrolysis oil and pyrolysis carbon) of the RDF are difficult to ensure. The garbage is not finely classified and sorted, pure perishable organic matters without RDF, metals and inorganic particles cannot be obtained, perishable objects which account for nearly half of the weight of the garbage cannot be found out, a landfill site is still needed, and pollution discharge such as percolate, landfill gas and the like is continuously generated in the landfill process. And the garbage is not finely classified and sorted, so that the metals in the garbage cannot be completely sorted, and the garbage cannot be recycled to the maximum extent. The fine classification and sorting of the garbage are not carried out, and the obtained inorganic residue cannot be harmlessly treated, so that the inorganic residue can become a burden of garbage treatment and a solid pollution source.
In the fine classification and sorting process of the garbage, in order to realize the fine classification and sorting, the utilization of the moisture in the materials and the sorting process water must give high attention. On one hand, the garbage contains water and is not assisted by additional process water, so that the fine classification and sorting of the garbage are difficult to realize, and on the other hand, after the wet classification and sorting, the sorting process water becomes high-concentration organic wastewater, the quantity is large, the treatment cost is high, the economic benefit of the project is seriously applied, and even the project cannot run. Recycling is the only way to solve the problem.
When the process water is used for finely classifying and sorting garbage, the putrefactive part of perishable organic matters in the garbage, percolate, and soluble biomass such as cell water generated by breaking perishable organic matters in the processes of RDF extraction and RDF cleaning enter the garbage, and filtrate obtained after filtering solid suspended matters (perishable organic matters, soil and the like) is high-concentration perishable organic wastewater. If the organic matters are not treated, the organic matters in the organic matters are immediately rotten to emit foul smell, the color is darkened, and the viscosity is increased. Heavy metal ions in the waste water can be accumulated after multiple cycles, and the quality of perishable organic matters is seriously influenced. The prevention of anaerobic fermentation reaction and putrefaction of the used medium water is the primary task for realizing the recycling of the medium water. The concentration of heavy metal ions in the circulating water is monitored, and the necessary measures for ensuring that the perishable organic matters meet the requirements of organic fertilizers are taken.
The invention content is as follows:
the invention aims to solve the existing problems and provides a technology for recycling process water for finely classifying and sorting garbage, which utilizes the deodorization capacity and strong oxidizing property of ozone and the characteristics of high concentration, fast diffusion and uniform dispersion of micro-nano bubbles in water to quickly modify the process water and create multiple characteristics of conditions for removing heavy metals, and can realize the recycling of the process circulating water in the finely classified and sorted garbage process.
The technical solution of the invention is as follows:
a technology for recycling process water for finely classifying and sorting garbage comprises a process water tank to be treated, wherein the process water tank to be treated is connected with a water outlet end of a garbage treatment system, the water outlet end of the process water tank to be treated is connected with the water treatment system, and the water outlet end of the water treatment system is connected with a water inlet end of the garbage treatment system to form circulating water.
Preferably, the water treatment system comprises the following treatment steps:
step 1: the water outlet end of the process water tank to be treated is connected with a micro-nano bubble generator, and the micro-nano bubble generator is connected with an ozone machine. Oxygen and ozone micro-nano bubbles are introduced into the process water in the conveying process so as to kill microorganisms, change the oxygen concentration in the water and inhibit anaerobic bacteria from generating anaerobic reaction, and prevent the process water from smelling;
step 2: the process water treated in the step 1 enters a process water reaction tank, and the process water is subjected to sterilization, deodorization and oxidation reactions;
and step 3: and (3) obtaining circulating water after treatment in the step (2), and enabling the circulating water to enter a garbage treatment system for recycling.
Preferably, in the water treatment system, after step 1 is completed, the process water conveying pipeline is provided with a heavy metal ion sensor.
Preferably, when the heavy metal ion sensor detects that the concentration of the heavy metal ions is increased, a flocculating agent is added for sedimentation treatment to remove the heavy metal ions.
The invention has the beneficial effects that:
1. the invention treats the process water for finely classifying and sorting garbage through the water treatment system and realizes the discharge-free recycling of the process water;
2. the invention utilizes the deodorization capability and strong oxidizing property of ozone and the characteristics of high concentration, fast diffusion and uniform dispersion of micro-nano bubbles in water to quickly modify process water and create a plurality of characteristics of conditions for removing heavy metals.
3. Through the removal of the heavy metal ions, the heavy metal ions in the circulating water are ensured to be in a safe and controllable range, so that the quality of perishable organic matters is ensured.
Description of the drawings:
FIG. 1 is a process flow diagram of the present invention.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
As shown in figure 1, the technology for recycling the process water for finely classifying and sorting the garbage comprises a process water tank to be treated, which is connected with the water outlet end of a garbage treatment system, wherein the water outlet end of the process water tank to be treated is connected with a water treatment system, and the water outlet end of the water treatment system is connected with the water inlet end of the garbage treatment system to form circulating water.
Specifically, the water treatment system comprises the following treatment steps:
step 1: the water outlet end of the process water tank to be treated is connected with a micro-nano bubble generator, oxygen and ozone are introduced into the process water in the conveying process, or a strong oxidant is added, so that on one hand, microorganisms are killed, on the other hand, the concentration of oxygen in the water is changed to inhibit anaerobic bacteria from generating anaerobic reaction, and the circulating water can be prevented from smelling. The process selects the ozone micro-nano bubbles as a carrier to carry out circulating water treatment, increases the solubility and the residence time of ozone in process water by utilizing the micro-nano bubbles, and improves the dispersibility and the uniformity of the ozone in the water, thereby achieving the purposes of quickly killing anaerobic bacteria with low activity, promoting microorganisms with high activity to be in a dormant state and cutting off a microorganism reaction path. Ozone has strong oxidizing property, generated hydroxyl free radicals are oxidized next to fluorine with the strongest oxidizing property, easily-degradable organic matters in the medium water are decomposed, and the promoting effect of micro-nano bubbles can improve the oxidizing property of the ozone by 30-300 percent and reduce the COD and BOD concentrations of the medium water, so that the medium water can be recycled;
step 2: the process water treated in the step 1 enters a process water reaction tank to carry out sterilization, deodorization and oxidation reactions on the process water, and the process is the prior general technology and is not repeated;
and step 3: and (3) obtaining circulating water after treatment in the step (2), and enabling the circulating water to enter a garbage treatment system for recycling.
Specifically, in the water treatment system, after step 1 is completed, the process water conveying pipeline is provided with the heavy metal ion sensor, the oxidation action of ozone promotes the valence of the metal ions in the process water to be increased to a high valence, once the concentration of the heavy metal ions is detected to be close to a control level, the heavy metal ions in the circulating water can be removed by adding a flocculating agent for sedimentation treatment, and the quality of the circulating water is ensured.
The invention utilizes the performance of ozone for killing microorganisms and oxidatively decomposing perishable organic matters to kill the microorganisms in the process water or promote the microorganisms to be dormant, eliminates the odor of the process water, stabilizes the COD and BOD concentrations in the water, does not accumulate the COD and BOD concentrations, and can increase the gas concentration, the dispersion uniformity and the retention time in the water and improve the oxidizing property of ozone by more than 30 percent by virtue of micro-nano bubbles, thereby ensuring the water quality of the process water to be stable and realizing the infinite recycling.
The above description is only a preferred embodiment of the present invention, and all other embodiments obtained by those skilled in the art without any inventive work shall fall within the scope of the present invention.
Claims (4)
1. A technology for recycling process water for finely classifying and sorting garbage is characterized in that: the water treatment system comprises a to-be-treated process water tank connected with the water outlet end of the garbage treatment system, wherein the water outlet end of the to-be-treated process water tank is connected with the water treatment system, and the water outlet end of the water treatment system is connected with the water inlet end of the garbage treatment system to form circulating water.
2. The water recycling technology for the fine garbage classification and sorting process according to claim 1, characterized in that: the water treatment system comprises the following treatment steps:
step 1: the water outlet end of the process water tank to be treated is connected with a micro-nano bubble generator, oxygen and ozone micro-nano bubbles are introduced into the process water in the conveying process, so that microorganisms are killed, the oxygen concentration in the water is changed, anaerobic bacteria are inhibited from generating anaerobic reaction, and the process water is prevented from smelling;
step 2: the process water treated in the step 1 enters a process water reaction tank, and the process water is subjected to sterilization, deodorization and oxidation reactions;
and step 3: and (3) obtaining circulating water after treatment in the step (2), and enabling the circulating water to enter a garbage treatment system for recycling.
3. The water recycling technology for the fine garbage classification and sorting process according to claim 2, characterized in that: in the water treatment system, after the step 1 is completed, the process water conveying pipeline is provided with the heavy metal ion sensor.
4. The water recycling technology for the fine garbage classification and sorting process according to claim 3, characterized in that: when the heavy metal ion sensor detects that the concentration of the heavy metal ions is increased, a flocculating agent is added for sedimentation treatment to remove the heavy metal ions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910739179.5A CN110615550A (en) | 2019-08-12 | 2019-08-12 | Water recycling technology for fine garbage sorting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910739179.5A CN110615550A (en) | 2019-08-12 | 2019-08-12 | Water recycling technology for fine garbage sorting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110615550A true CN110615550A (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910739179.5A Pending CN110615550A (en) | 2019-08-12 | 2019-08-12 | Water recycling technology for fine garbage sorting process |
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| Country | Link |
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| CN (1) | CN110615550A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108017140A (en) * | 2017-12-08 | 2018-05-11 | 安徽金联地矿科技有限公司 | A kind of waste water treatment system based on the micro-nano bubble of ozone |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002136977A (en) * | 2000-11-02 | 2002-05-14 | Matsushita Electric Ind Co Ltd | Sewage treatment apparatus of waste household electric appliance recycling treatment apparatus |
| KR20060059919A (en) * | 2006-04-04 | 2006-06-02 | 주식회사 드림바이오스 | The process and operation of using enzymatic pre- treatment of the suspended solids for the anaerobic bioreactor of food wastes using hammer milling and centrifuge |
| CN202079073U (en) * | 2011-05-11 | 2011-12-21 | 深圳市神州创宇低碳技术有限公司 | Real-time treatment system using high-energy oxygen for hydrolyzing and oxidizing organic biomass |
| CN102755983A (en) * | 2012-08-28 | 2012-10-31 | 惠州市神州创宇低碳技术发展有限公司 | Comprehensive treatment system and method for household wastes |
| CN105855261A (en) * | 2016-03-29 | 2016-08-17 | 广州拯绿环保科技有限公司 | Method for recycling water through household garbage organic matter water decomposition and pulp extracting and filtering |
| CN109879537A (en) * | 2019-03-18 | 2019-06-14 | 天津市宇驰检测技术有限公司 | Water quality monitoring purification method |
-
2019
- 2019-08-12 CN CN201910739179.5A patent/CN110615550A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002136977A (en) * | 2000-11-02 | 2002-05-14 | Matsushita Electric Ind Co Ltd | Sewage treatment apparatus of waste household electric appliance recycling treatment apparatus |
| KR20060059919A (en) * | 2006-04-04 | 2006-06-02 | 주식회사 드림바이오스 | The process and operation of using enzymatic pre- treatment of the suspended solids for the anaerobic bioreactor of food wastes using hammer milling and centrifuge |
| CN202079073U (en) * | 2011-05-11 | 2011-12-21 | 深圳市神州创宇低碳技术有限公司 | Real-time treatment system using high-energy oxygen for hydrolyzing and oxidizing organic biomass |
| CN102755983A (en) * | 2012-08-28 | 2012-10-31 | 惠州市神州创宇低碳技术发展有限公司 | Comprehensive treatment system and method for household wastes |
| CN105855261A (en) * | 2016-03-29 | 2016-08-17 | 广州拯绿环保科技有限公司 | Method for recycling water through household garbage organic matter water decomposition and pulp extracting and filtering |
| CN109879537A (en) * | 2019-03-18 | 2019-06-14 | 天津市宇驰检测技术有限公司 | Water quality monitoring purification method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108017140A (en) * | 2017-12-08 | 2018-05-11 | 安徽金联地矿科技有限公司 | A kind of waste water treatment system based on the micro-nano bubble of ozone |
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Application publication date: 20191227 |