WO2017219892A1 - 原生态水处理工艺及其处理系统 - Google Patents

原生态水处理工艺及其处理系统 Download PDF

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Publication number
WO2017219892A1
WO2017219892A1 PCT/CN2017/088007 CN2017088007W WO2017219892A1 WO 2017219892 A1 WO2017219892 A1 WO 2017219892A1 CN 2017088007 W CN2017088007 W CN 2017088007W WO 2017219892 A1 WO2017219892 A1 WO 2017219892A1
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WIPO (PCT)
Prior art keywords
water
ozone
source water
ultrafiltration membrane
water treatment
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Application number
PCT/CN2017/088007
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English (en)
French (fr)
Inventor
丁南华
吴鹏飞
丁青
姜华
蒋磊
Original Assignee
江苏达格水务有限公司
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Publication of WO2017219892A1 publication Critical patent/WO2017219892A1/zh
Priority to PH12018550043A priority Critical patent/PH12018550043A1/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/20Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/78Treatment of water, waste water, or sewage by oxidation with ozone
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • C02F2101/18Cyanides
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • C02F2101/203Iron or iron compound
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • C02F2101/206Manganese or manganese compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/14Maintenance of water treatment installations

Definitions

  • the invention relates to the field of water treatment process equipment, and in particular to an original ecological water treatment process and a treatment system thereof.
  • the conventional water supply treatment system used at home and abroad consists of coagulation equipment, dosing PAC equipment, sedimentation equipment, flocculation equipment, dosing PAM equipment, clarification equipment, water lift pump, mechanical filtration equipment, backwash equipment, precision Filtration equipment, chemical treatment equipment, ultrafiltration equipment, disinfection equipment, sludge lifting pump, sludge concentration equipment, dosing PAM flocculation, sludge dewatering equipment, sludge transportation equipment, etc.
  • the process flow is to take coagulant from the water pump, coagulate after chlorination, sedimentation, filtration (post-chlorination disinfection), clean water tank, water pumping house, urban pipe network.
  • the above water treatment process and equipment need to be added in the water treatment process.
  • a variety of water treatment agents, and sludge will be produced in the water treatment process, which requires sludge dewatering system equipment for sludge treatment, so the water treatment system has a large area, high operating costs, and a large investment in the project.
  • the tap water obtained by the user is treated water for adding various types of water treatment chemicals.
  • the present applicant has made research and improvement on the above existing problems, and provides an original ecological water treatment process and a treatment system thereof.
  • the treatment system does not need to add any water treatment agent during the operation, and no sludge is generated, and Additional sludge dewatering system equipment is required.
  • the original ecological water treatment process and the treatment system thereof comprising a transformer, an electric control room, a liquid oxygen tank, a heat exchanger, a cooler, the liquid oxygen tank, the heat exchanger, and the cooler are connected in series through the first pipeline Connected to a plurality of ozone generators connected in series with each other, and a plurality of ozone generators connected in series with each other are connected to the pre-ozonation treatment device through the second pipeline to transport the prepared ozone into the pre-ozonation treatment device; a source water lifting device for extracting river, lake source water, the source water lifting device conveying source water to a pre-filtration device through a primary lifting pump, the pre-filtration device passing through a water guiding tank, a boosting pump, and a third tube Road, secondary lift pump will
  • the water is sent to a pre-ozonation treatment device for dissolving water and ozone; the pre-ozonation treatment device is connected to the pre-ozone reactor group through a venturi tube, the pre-
  • the post-ozone reactor for removing color, odor and organic contaminants in the water, the post-ozone reactor being connected to the second line, the post-ozone reactor also passing through the fifth line a contact cell connection;
  • the ozone generator is a plate type ozone generator;
  • the ultrafiltration membrane is a strong oxidation resistant ultrafiltration membrane;
  • the ultrafiltration membrane is further connected to the chemical cleaning device through the sixth pipeline, the chemical cleaning device is used for further cleaning the internal pollutants of the ultrafiltration membrane, and the cleaning interval is 12-18 months, the pollution The material is discharged through the backwashing water pipe;
  • the pre-filtration device comprises a pre-grid filter device and a pre-precipitation device, wherein the pre-grid filter device is used for realizing separation of solids and liquids in source water of rivers and lakes, and realizing particulate matter in the source water by backwashing Removing; the pre-precipitation device is for treating high turbidity sediments caused by rainy seasons;
  • a pre-precipitation device is provided, the pre-precipitation device is connected to the source water lifting device;
  • a water treatment process for water treatment using an original ecological water treatment system comprising the following steps:
  • Step 1 Introducing source water of rivers and lakes into the pre-filtration device by the source water lifting device through the primary lifting pump
  • the second step the ozone is produced by the liquid oxygen tank, the heat exchanger and the ozone generator, and the ozone is sent to the pre-ozonation treatment device through the secondary lift pump, and the ozone is dissolved with the source water by using the pre-ozonation treatment device. .
  • the third step the dissolved ozone and the source water are contacted by the venturi tube and then enter the pre-ozone reactor group, and the ozone is subjected to a strong oxidation reaction in the pre-ozone reactor group;
  • the fourth step after the strong oxidation reaction, the ozone and the source water enter the degassing chamber group through the pipeline, degas the gas which does not dissolve the source water in the ozone to form oxygen, and the ozone that has not been degassed forms the micro ozone and Source water inflow Lower middle degassing pool;
  • Step 5 The source water with micro-ozone is lifted into the ultrafiltration membrane through a three-stage lift pump and subjected to microbubble reaction, and the source water directly enters the ultrafiltration membrane body to be filtered and continuously ultrafiltered out water;
  • the strong oxidation reaction is used for treating organic pollutants, inorganic pollutants and heavy metals in the source water, and the ozone-containing source water flowing out of the pre-odor oxidation treatment device contains pollutants which are easily dissolved or less than 300 micrometers;
  • the fifth step of the source water continuous ultrafiltration effluent water comprises a plurality of post-treatment effluent modes, wherein the post-treatment effluent mode comprises normal effluent, activated carbon filtered effluent and post-ozone effluent;
  • the volume of the bubbles in the source water lifted by the three-stage lift pump gradually decreases as the volume moves toward the ultrafiltration membrane body, and the outer surface of the ultrafiltration membrane continuously explodes, so that the super-adhesive membrane adheres to the super Contaminants on the surface of the membrane membrane sink to the bottom of the ultrafiltration membrane;
  • the post-ozone effluent enthalpy is connected to the contact pool through a fifth pipeline through a post-ozone reactor and reacts the ozone with the ultrafiltration effluent water;
  • the ultrafiltration membrane backwashing is performed by an air compressor, a compressed air tank and a backwashing water pump to extract the clear water of the underground clear water pool, and the steam washing water is sent to the ultrafiltration membrane through the backwashing water pipe to perform stepwise backwashing of each ultrafiltration membrane.
  • the backwashed water is discharged through the backwashing water pipe.
  • the arrangement of the pre-filtration device can realize solid-liquid separation of impurities in water, which can effectively remove turbidity, humidity, odor, Escherichia coli, trace organic matter, CODmn, algae, and eliminate pathogens and viruses in water, Contaminants in water such as iron, fierce, cyanogen oxide and pesticide residues.
  • the present invention uses the strong oxidation of ozone to generate microbubbles, and uses the microbubble reaction to achieve repeated collisions with the ultrafiltration membrane body, thereby causing the contaminants adhering to the surface of the ultrafiltration membrane to be dropped and discharged. It not only realizes the automatic cleaning of the ultrafiltration membrane body, but also prevents it from sticking. It does not need to add any chemicals, and it also avoids adding sludge dewatering system equipment.
  • the invention occupies only 40% of the existing foreign water treatment process, and the investment is only 95% of the existing domestic water treatment process, and the operating cost can be saved by 62% compared with the existing domestic technology, and the intelligent operation It only needs one person to be on duty, or it can be controlled directly via the Internet.
  • the minerals such as Mg and Ca required by the human body are retained, and the PH value is neutral. All the indicators of water quality after treatment are superior to the international and domestic drinking water standards.
  • FIG. 1 is a schematic structural view of the present invention.
  • FIG. 2 is a schematic view showing a process of contacting a microbubble with an ultrafiltration membrane in the present invention.
  • the original ecological water treatment process and its treatment system include a transformer 1, an electric control room 10, a liquid oxygen tank 4, a heat exchanger 5, a cooler 7, a liquid oxygen tank 4, and a heat exchanger 5.
  • the coolers 7 are connected in series, they are connected to a plurality of ozone generators 8 connected in series through the first line 2 201, and the plurality of ozone generators 8 connected in series with each other pass through the second line 2202 and the pre-ozonation treatment device 19
  • the prepared ozone is transported to the pre-ozonation treatment unit 19.
  • FIG. 1 As shown in FIG.
  • the present invention further includes a source water lifting device 16 for extracting river and lake source water, and the source water lifting device 16 delivers the source water to the pre-filtration device 17 through the primary lifting pump 1601.
  • the pre-filtration device 17 The utility model comprises a pre-grid filtering device and a pre-precipitation device, wherein the pre-grid filtering device is used for realizing separation of solids and liquids in source water of rivers and lakes, and removing particulate matter in source water by backwashing; pre-precipitation device 23 is used for treating High turbidity sediments from the rainy season, pre-precipitation devices used to treat rainy seasons The high turbidity deposit brought about by the section, if the source water turbidity is greater than 150 mg/l, the pre-precipitation device 23 is provided, and the pre-precipitation device 23 is connected to the source water lifting device 16 .
  • the pre-filtration device 17 can effectively remove turbidity, humidity, odor, Escherichia coli, trace organic matter, CODmn, algae, and water contaminants such as pathogens and viruses, iron, sulphur, cyanide and pesticide residues. Retaining the minerals such as Mg and Ca required by the human body, the PH value is neutral, and all the indicators of water quality after treatment are better than the national drinking water standards. As shown in FIG. 1, the pre-filtration device 17 delivers water to the pre-ozonation treatment device 19 through the water diversion tank 171, the booster pump 18, the third conduit 2203, and the secondary lift pump 1901.
  • the pre-ozonation treatment device 19 is used for The water is dissolved with ozone; the pre-ozonation treatment unit 19 is connected to the pre-ozone reactor group 20 through the venturi tube 1902, and the pre-ozone reactor group 20 is connected to the degassing chamber group 21 and the underground intermediate degassing pool 6 and passes through
  • the three-stage lift pump 9 delivers the dehydrated source water to the ultrafiltration membrane 14, and the ultrafiltration membrane 14 is connected to the underground clear water tank 25 through the ultrafiltration outlet pipe 15, and the underground clear water tank 25 passes the water through the pipeline and the four-stage lift pump 26. Discharge to the user.
  • the present invention further includes an air compressor 2 and a compressed air tank 3 which are connected in series with each other.
  • the air compressor 2 and the compressed air tank 3 are connected to the backwash water pump 11 through the fourth line 2204 and are backwashed.
  • the water pipe 2205 is connected to the ultrafiltration membrane 14, and the ultrafiltration membrane 14 is a strong oxidation resistant ultrafiltration membrane.
  • the present invention also includes a post-ozone reactor 13 for removing color, odor, and organic contaminants in the water.
  • the ozone generator 8 is a plate type ozone generator.
  • the post-ozone reactor 13 is connected to the second line 2202, and the post-ozone reactor 13 is also connected to the contact tank 12 by a fifth line 2206. As shown in Fig. 1, the ultrafiltration membrane 14 also passes through the sixth line.
  • the ultrafiltration membrane 14 and the pre-filtration device 17 are also connected to the backwash water outlet 2207.
  • the water treatment process for water treatment by using the above-mentioned original ecological water treatment system includes the following steps:
  • the source water lifting device 16 introduces the source water of the river and the lake into the pre-filtration device 17 through the primary lifting pump 1601 for pre-filtration.
  • the pre-filtration device 17 comprises a pre-grid filter device and a pre-precipitation device 23, wherein the pre-grid filter device is used for separating solids and liquids in source water of rivers and lakes, and removing particulate matter in the source water by backwashing; pre-precipitation device 23 is used to treat high turbidity sediments caused by the rainy season.
  • the pre-precipitation device 23 is used to treat high turbidity sediments caused by the rainy season.
  • the pre-precipitation device is installed. 23.
  • the pre-precipitation device 23 is connected to the source water lifting device 16.
  • Pre-filtering The device 17 can effectively remove turbidity, humidity, odor, Escherichia coli, trace organic matter, CODm n, algae, and eliminate water contaminants such as pathogens and viruses, iron, sulphur, cyanide and pesticide stagnation. Retaining the minerals such as Mg and Ca required by the human body, the PH value is neutral, and all the indicators of water quality after treatment are better than the national drinking water standards.
  • the pre-filtration device 17 delivers water to the pre-ozonation treatment device 19 through the water diversion tank 171, the booster pump 18, the third pipeline 22 03, and the secondary lift pump 1901, and uses the water in the water pump 171 to pressurize the water.
  • the pump 18 is filled with water in advance to ensure that the booster pump 18 is activated.
  • the second step: ozone is produced by the liquid oxygen tank 4, the heat exchanger 5 and the ozone generator 8, and the ozone is sent to the pre-ozonation treatment device 19 through the second pipeline 220 and the secondary lift pump 1901.
  • the ozone is made to be compatible with the source water by the pre-ozonation treatment device 19.
  • the ozone preparation is composed of an ozone generator 8 and a liquid oxygen tank 4, and a heat exchanger 5, and the ozone can also be directly prepared by the ozone generator 8 through air.
  • the third step the ozone is subjected to a strong oxidation reaction in the pre-ozone reactor group 20; the strong oxidation reaction is used to treat the organic pollutants, inorganic pollutants and heavy metals in the source water, and the above-mentioned strip of the pre-ozonation treatment device 19 is discharged.
  • Ozone-derived source water contains contaminants that are soluble or less than 300 microns.
  • the fourth step after the strong oxidation reaction, the ozone and the source water enter the degassing chamber group 21 through the pipeline, and the degassing chamber group 21 is used to degas the gas which does not dissolve the source water in the ozone to form oxygen, and the gas is not degassed.
  • the ozone forms micro-ozone and flows into the underground degassing pool 6 with the source water.
  • the fifth step the source water with micro-ozone is lifted into the ultrafiltration membrane 14 through the three-stage lift pump 9 to perform a microbubble reaction, and the source water directly enters the ultrafiltration membrane 14 to filter the inside of the membrane and continuously ultra-filter out the water. .
  • the volume of the bubbles in the source water lifted by the three-stage lift pump 9 gradually decreases as the volume of the ultrafiltration membrane 14 travels, and the outer surface of the ultrafiltration membrane 14 continuously explodes. Contaminants adhering to the surface of the ultrafiltration membrane 14 are allowed to sink to the bottom of the ultrafiltration membrane and discharged.
  • the above source water continuous ultrafiltration effluent water comprises a plurality of post-treatment effluent modes, and the post-treatment effluent mode includes normal effluent, activated carbon filtered effluent and post-ozone effluent.
  • the post-ozone reactor 13 is connected to the contact tank 12 through the fifth line 2206 and the ozone is contacted with the ultrafiltration effluent.
  • the post-treatment effluent flows into the underground clear water tank 25, is lifted and discharged by the four-stage lift pump 26 for use by the user, and is appropriately chlorinated for disinfection before discharge.
  • the source water pollutants exceed the processing capacity of the system equipment of the present invention by 20%, and the activated carbon water is discharged.
  • the source water pollutants exceed the processing capacity of the system of the present invention by 10%, and the ozone water is used.
  • the backwash ultrafiltration membrane 14 ⁇ is required in the process of the present invention
  • the backwashing of the ultrafiltration membrane is performed by the air compressor 2
  • the air-reducing tank 3 and the backwashing water pump 11 extract the underground clear water clear water 25 and deliver the steam-water mixed water to the ultrafiltration membrane 14 through the backwashing water supply pipe 2205 to perform step-wise back washing of each group of ultrafiltration membranes 14, and the water after the backwashing passes
  • the backwash water pipe 2207 is discharged.
  • the ultra-filtration membrane 14 is continuously cleaned by the ozone microbubbles to prevent film fouling. Combined with soda water anti-cleaning, the membrane does not scale, the backwashing drainage reaches the direct discharge standard, and the effluent reaches the original ecological health water standard.
  • the land occupation is only 30-40% of the existing foreign water treatment process.
  • the investment is only the domestic tap water project process 85- 95%, the operating cost is only 30% of the domestic tap water project process.
  • the system of the invention can be automatically controlled through the whole process of the electric control room.
  • the oxygen consumption cost per ton of water is 0.26 yuan / ton of water.
  • the cost per ton of water consumption is 0.11 yuan / ton of water, and the labor cost per ton of water consumption is 0.01 yuan / ton of water.

Abstract

一种原生态水处理工艺及其处理系统,其工艺的具体步骤为:第一步:由源水提升装置(16)提取河流、湖泊的源水引入预过滤装置(17);第二步:由液氧罐(4)、换热器(5)及臭氧发生器(8)制造臭氧并将臭氧送入预臭氧化处理装置(19);第三步:相溶的臭氧与源水通过文丘里管(1902)接触后进入前置臭氧反应器组(20)进行强氧化反应;第四步:臭氧在强氧化反应后与源水通过管道进入脱气室组(21),未脱气完毕的臭氧形成微臭氧并与源水流入地下中间脱气水池(6);第五步:带有微臭氧的源水通过三级提升泵(9)提升进入超滤膜(14)内部并进行微泡反应,源水直接进入超滤膜(14)膜体内部过滤并连续超滤出水。上述系统占地仅是现有国外水处理工艺40%,投资仅是国内现有水处理工艺95%,运行费用与国内现有技术相比可节约62%。

Description

原生态水处理工艺及其处理系统 技术领域
[0001] 发明涉及水处理工艺设备领域, 尤其涉及原生态水处理工艺及其处理系统。
背景技术
[0002] 目前, 国内外现用常规供水处理系统由混凝设备、 加药 PAC设备、 沉淀设备、 絮凝设备、 加药 PAM设备、 澄清设备、 水提升泵、 机械过滤设备、 反冲洗设备 、 精密过滤设备、 加化药药剂设备、 超滤设备、 消毒设备、 污泥提升泵、 污泥 浓缩设备、 加药 PAM絮凝、 污泥脱水设备、 污泥输送设备等多种设备构成, 其 制水的工艺流程为取水泵投混凝剂、 加氯后混凝、 沉淀、 过滤 (后加氯消毒) 、 清水池、 送水泵房、 城市管网, 上述供水处理工艺及设备在水处理过程中需 要添加多种水处理药剂,并且在水处理过程中会产生污泥, 其需要污泥脱水系统 装备进行污泥处理, 因此水处理系统的占地面积大, 运行费用高, 工程总投资 大。 另外由于上述水处理过程中添加多种水处理药剂, 因此用户所得自来水均 为投加各类水处理药剂的处理用水。
技术问题
[0003] 本申请人针对上述现有问题, 进行了研究改进, 提供原生态水处理工艺及其处 理系统, 该处理系统在运行过程中不需要添加任何水处理药剂, 而且无污泥产 生, 不需要额外增加污泥脱水系统装备。
问题的解决方案
技术解决方案
[0004] 原生态水处理工艺及其处理系统, 包括变压器、 电气控制室、 液氧罐、 换热器 、 冷却器, 所述液氧罐、 换热器、 冷却器串联后通过第一管路与互为串联的多 个臭氧发生器连接, 各互为串联的多个臭氧发生器通过第二管路与预臭氧化处 理装置连接, 使制备的臭氧运输至预臭氧化处理装置内; 还包括用于提取河流 、 湖泊源水的源水提升装置, 所述源水提升装置通过一级提升泵将源水输送至 预过滤装置, 所述预过滤装置通过引水罐、 增压泵、 第三管路、 二级提升泵将 水输送至预臭氧化处理装置, 所述预臭氧化处理装置用于将水与臭氧相溶; 所 述预臭氧化处理装置通过文丘里管连接前置臭氧反应器组, 所述前置臭氧反应 器组与脱气室组、 地下中间脱气中间水池连接并通过三级提升泵将脱气后源水 输送至超滤膜, 所述超滤膜通过管路与地下清水池连接, 所述地下清水池通过 超滤出水管及四级提升泵将水排出至用户使用。
[0005] 其进一步技术方案在于:
[0006] 还包括互为串联的空气压缩机及压缩空气罐, 所述空气压缩机、 压缩空气罐通 过第四管路与反冲洗水泵连接并通过反洗进水管连接超滤膜;
[0007] 还包括用于去除水中色度、 气味及有机污染物的后置臭氧反应器, 后置臭氧反 应器与第二管路连接, 所述后置臭氧反应器还通过第五管路与接触池连接; [0008] 所述臭氧发生器为板式臭氧发生器; 所述超滤膜为耐强氧化超滤膜;
[0009] 所述超滤膜还通过第六管路与化学清洗装置连接, 所述化学清洗装置用于进一 步清洗超滤膜内部污染物, 清洗吋间间隔为 12-18个月, 所述污染物通过反洗出 水管排出;
[0010] 所述预过滤装置包括预格网过滤装置及预沉淀装置, 所述预格网过滤装置用于 实现河流、 湖泊源水中的固体及液体分离, 并通过反冲洗实现源水内颗粒物的 去除; 所述预沉淀装置用于处理因雨水季节带来的高浊度沉积物;
[0011] 若源水浊度大于 150mg/l吋设置预沉淀装置, 所述预沉淀装置与源水提升装置 连接;
[0012] 一种利用原生态水处理系统进行水处理的水处理工艺, 包括以下步骤:
[0013] 第一步: 由源水提升装置通过一级提升泵将河流、 湖泊的源水引入预过滤装置
[0014] 第二步: 由液氧罐、 换热器及臭氧发生器制造臭氧并通过二级提升泵将臭氧送 入预臭氧化处理装置, 利用预臭氧化处理装置使臭氧与源水相溶。
[0015] 第三步: 相溶的臭氧与源水通过文丘里管接触后进入前置臭氧反应器组, 臭氧 在前置臭氧反应器组内进行强氧化反应;
[0016] 第四步: 臭氧在强氧化反应后与源水通过管道进入脱气室组, 对臭氧中不溶解 源水的气体进行脱气形成氧气, 未脱气完毕的臭氧形成微臭氧并与源水流入地 下中间脱气水池;
[0017] 第五步: 带有微臭氧的源水通过三级提升泵提升进入超滤膜内部并进行微泡反 应, 源水直接进入超滤膜膜体内部过滤并连续超滤出水;
[0018] 所述强氧化反应用于处理源水中有机污染物、 无机污染物及重金属, 流出预臭 氧化处理装置的带有臭氧的源水包含易溶解或小于 300微米的污染物;
[0019] 所述第五步中源水连续超滤出水包含多种后处理出水模式, 所述后处理出水模 式包括正常出水、 活性炭过滤出水及后臭氧出水;
[0020] 在所述微泡反应中, 通过三级提升泵提升的源水中的气泡向超滤膜膜体行进过 程中体积呈逐渐递减, 在超滤膜膜体外表面连续爆炸, 使附着于超滤膜膜体表 面的污染物沉落至超滤膜底部;
[0021] 所述后臭氧出水吋, 由后置臭氧反应器通过第五管路与接触池连接并将臭氧与 超滤出水接触反应;
[0022] 超滤膜反冲洗由空气压缩机、 压缩空气罐及反冲洗水泵提取地下清水池清水并 通过反洗进水管向超滤膜输送汽水混合水进行每组超滤膜的阶梯式反洗, 反冲 洗后的水通过反洗出水管排出。
发明的有益效果
有益效果
[0023] 本发明的有益效果如下:
[0024] (1) 预过滤装置的布置可以实现水中杂质的固液分离, 其可以有效去除水中 的浊度、 湿度、 异味、 大肠杆菌、 微量有机物、 CODmn、 藻类、 及消除病原体 和病毒、 除铁、 猛、 氧化氰及农药暂留物等水中污染物。
[0025] (2) 本发明采用臭氧强氧化产生微小气泡, 利用微泡反应实现对超滤膜膜体 的反复碰撞, 由此使附着于超滤膜膜体表面的污染物掉落并排出, 其不仅实现 了对超滤膜膜体的自动清洗, 防止其粘污, 其不需要添加任何药剂, 也避免增 设污泥脱水系统装备。
[0026] (3) 本发明占地仅是现有国外水处理工艺 40%, 投资仅是国内现有水处理工 艺 95%, 运行费用与国内现有技术相比可节约 62%, 智能化运行仅需一个人值班 , 也可直接通过互联网控制。 有效去除水中的浊度、 湿度、 异味、 大肠杆菌、 微量有机物、 铁、 猛、 氧化氰及农药暂留物等水中污染物。 保留人体所需的 Mg 、 Ca等矿物质, PH值达到中性, 处理后水质所有指标优于国际及我国生活饮用 水标准。
对附图的简要说明
附图说明
[0027] 图 1为本发明的结构示意图。
[0028] 图 2为本发明中微泡与超滤膜接触的过程示意图。
[0029] 其中: 1、 变压器; 2、 空气压缩机; 3、 压缩空气罐; 4、 液氧罐; 5、 换热 器; 6、 地下中间脱气水池; 7、 冷却器; 8、 臭氧发生器; 9、 三级提升泵; 10 、 电气控制室; 11、 反冲洗水泵; 12、 接触池; 13、 后置臭氧反应器; 14、 超 滤膜; 15、 超滤出水管。 16、 源水提升装置; 1601、 一级提升泵; 17、 预过滤 装置; 171、 引水罐; 18、 增压泵; 19、 预臭氧化处理装置; 1901、 二级提升泵 ; 1902、 文丘里管; 20、 前置臭氧反应器组; 21、 脱气室组; 2201、 第一管路 ; 2202、 第二管路; 2203、 第三管路; 2204、 第四管路; 2205、 反洗进水管; 2 206、 第五管路; 2207、 反洗出水管; 2208、 第六管路; 23、 预沉淀装置; 24、 化学清洗装置; 25、 地下清水池; 26、 四级提升泵。
本发明的实施方式
[0030] 下面结合附图, 说明本发明的具体实施方式。
[0031] 如图 1所示, 原生态水处理工艺及其处理系统包括变压器 1、 电气控制室 10、 液 氧罐 4、 换热器 5、 冷却器 7, 液氧罐 4、 换热器 5、 冷却器 7串联后通过第一管路 2 201与互为串联的多个臭氧发生器 8连接, 各互为串联的多个臭氧发生器 8通过第 二管路 2202与预臭氧化处理装置 19连接, 使制备的臭氧运输至预臭氧化处理装 置 19内。 如图 1所示, 本发明还包括用于提取河流、 湖泊源水的源水提升装置 16 , 源水提升装置 16通过一级提升泵 1601将源水输送至预过滤装置 17, 预过滤装 置 17包括预格网过滤装置及预沉淀装置, 预格网过滤装置用于实现河流、 湖泊 源水中的固体及液体分离, 并通过反冲洗实现源水内颗粒物的去除; 预沉淀装 置 23用于处理因雨水季节带来的高浊度沉积物, 预沉淀装置用于处理因雨水季 节带来的高浊度沉积物, 若源水浊度大于 150mg/l吋设置预沉淀装置 23, 预沉淀 装置 23与源水提升装置16连接。 上述预过滤装置 17可以有效去除水中的浊度、 湿度、 异味、 大肠杆菌、 微量有机物、 CODmn、 藻类、 及消除病原体和病毒、 除铁、 猛、 氧化氰及农药暂留物等水中污染物。 保留人体所需的 Mg、 Ca等矿物 质, PH值达到中性, 处理后水质所有指标多优于国家生活饮用水标准。 如图 1所 示, 预过滤装置 17通过引水罐 171、 增压泵 18、 第三管路 2203、 二级提升泵 1901 将水输送至预臭氧化处理装置 19, 预臭氧化处理装置 19用于将水与臭氧相溶; 预臭氧化处理装置 19通过文丘里管 1902连接前置臭氧反应器组 20, 前置臭氧反 应器组 20与脱气室组 21、 地下中间脱气水池 6连接并通过三级提升泵 9将脱气后 源水输送至超滤膜 14, 超滤膜 14通过超滤出水管 15与地下清水池 25连接, 地下 清水池 25通过管路及四级提升泵 26将水排出至用户使用。 如图 1所示, 本发明还 包括互为串联的空气压缩机 2及压缩空气罐 3, 空气压缩机 2、 压缩空气罐 3通过 第四管路 2204与反冲洗水泵 11连接并通过反洗进水管 2205连接超滤膜 14, 超滤 膜 14为耐强氧化超滤膜。 如图 1所示, 本发明还包括用于去除水中色度、 气味及 有机污染物的后置臭氧反应器 13, 臭氧发生器 8为板式臭氧发生器。 后置臭氧反 应器 13与第二管路 2202连接, 后置臭氧反应器 13还通过第五管路 2206与接触池 1 2连接, 如图 1所示, 超滤膜 14还通过第六管路 2208与化学清洗装置 24连接, 化 学清洗装置 24用于进一步清洗超滤膜内部污染物, 清洗吋间间隔为 12-18个月, 污染物通过反洗出水管 2207排出, 如图 1所示, 上述超滤膜 14、 预过滤装置 17也 与反洗出水管 2207连接。
[0032] 如图 1、 图 2所示, 利用上述原生态水处理系统进行水处理的水处理工艺, 包括 以下步骤:
[0033] 第一步: 由源水提升装置 16通过一级提升泵 1601将河流、 湖泊的源水引入预过 滤装置 17进行预过滤。 预过滤装置 17包括预格网过滤装置及预沉淀装置 23, 预 格网过滤装置用于实现河流、 湖泊源水中的固体及液体分离, 并通过反冲洗实 现源水内颗粒物的去除; 预沉淀装置 23用于处理因雨水季节带来的高浊度沉积 物, 预沉淀装置 23用于处理因雨水季节带来的高浊度沉积物, 若源水浊度大于 1 50mg/l吋设置预沉淀装置 23, 预沉淀装置 23与源水提升装置 16连接。 上述预过滤 装置 17可以有效去除水中的浊度、 湿度、 异味、 大肠杆菌、 微量有机物、 CODm n、 藻类、 及消除病原体和病毒、 除铁、 猛、 氧化氰及农药暂留物等水中污染物 。 保留人体所需的 Mg、 Ca等矿物质, PH值达到中性, 处理后水质所有指标多优 于国家生活饮用水标准。 预过滤装置 17通过引水罐 171、 增压泵 18、 第三管路 22 03、 二级提升泵 1901将水输送至预臭氧化处理装置 19, 利用引水泵 171内有水的 条件, 将增压泵 18提前灌满水, 保证了增压泵 18的及吋启动。
[0034] 第二步: 由液氧罐 4、 换热器 5及臭氧发生器 8制造臭氧, 臭氧通过第二管路 220 2、 二级提升泵 1901将臭氧送入预臭氧化处理装置 19, 利用预臭氧化处理装置 19 使臭氧与源水相溶。 臭氧制备是由臭氧发生器 8与液氧罐 4、 换热器 5组成, 同吋 也可以通过空气由臭氧发生器 8直接制备臭氧。
[0035] 第三步: 臭氧在前置臭氧反应器组 20内进行强氧化反应; 强氧化反应用于处理 源水中有机污染物、 无机污染物及重金属, 上述流出预臭氧化处理装置 19的带 有臭氧的源水包含易溶解或小于 300微米的污染物。
[0036] 第四步: 臭氧在强氧化反应后与源水通过管道进入脱气室组 21, 利用脱气室组 21对臭氧中不溶解源水的气体进行脱气形成氧气, 未脱气完毕的臭氧形成微臭 氧并与源水流入地下中间脱气水池 6。
[0037] 第五步: 带有微臭氧的源水通过三级提升泵 9提升进入超滤膜 14内部并进行微 泡反应, 源水直接进入超滤膜 14膜体内部过滤并连续超滤出水。 在上述微泡反 应中, 如图 2所示, 通过三级提升泵 9提升的源水中的气泡向超滤膜 14膜体行进 过程中体积呈逐渐递减, 在超滤膜 14膜体外表面连续爆炸, 使附着于超滤膜 14 膜体表面的污染物沉落至超滤膜底部并排出。 上述源水连续超滤出水包含多种 后处理出水模式, 后处理出水模式包括正常出水、 活性炭过滤出水及后臭氧出 水。 在后臭氧出水吋, 由后置臭氧反应器 13通过第五管路 2206与接触池 12连接 并将臭氧与超滤出水接触反应。 如图 1所示, 后处理出水流入地下清水池 25, 通 过四级提升泵 26提升并排出供用户使用, 在排出前适当加氯进行消毒。 源水污 染物超过本发明系统设备处理能力 20%吋进行活性炭出水, 源水污染物超过本发 明系统设备处理能力 10%吋采用后臭氧出水。
[0038] 在本发明工艺中若需要反冲超滤膜 14吋, 超滤膜的反冲洗由空气压缩机 2、 压 缩空气罐 3及反冲洗水泵 11提取地下清水池清水 25并通过反洗进水管 2205向超滤 膜 14输送汽水混合水进行每组超滤膜 14的阶梯式反洗, 反冲洗后的水通过反洗 出水管 2207排出。
[0039] 在本发明中整个处理水工艺过程中不需要添加任何药剂, 而且无污泥产生, 不 需要污泥脱水系统装备, 超滤膜 14运行中臭氧微泡连续自动清洗防止膜粘污, 结合汽水反清洗达到膜不结垢, 反冲洗排水达到直接排放标准, 出水达到原生 态健康水标准, 占地仅是现有国外水处理工艺 30-40%, 投资仅是国内自来水项 目工艺 85-95%, 运行费用仅是国内自来水项目工艺 30%, 本发明系统可以通过 电气控制室全程自动化操控, 仅需要一人即可实现对全套设备的操作, 其中每 吨水耗氧成本 0.26元 /吨水, 每吨水耗电成本 0.11元 /吨水, 每吨水耗人工费 0.01元 /吨水。
[0040] 本发明的出水标准前后对比表如图下所示:
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Figure imgf000009_0001
[0041] 以上描述是对本发明的解释, 不是对发明的限定, 本发明所限定的范围参见权 利要求, 在不违背本发明的基本结构的情况下, 本发明可以作任何形式的修改

Claims

权利要求书
[权利要求 1] 原生态水处理系统, 其特征在于: 包括变压器 (1) 、 电气控制室 (1
0) 、 液氧罐 (4) 、 换热器 (5) 、 冷却器 (7) , 所述液氧罐 (4) 、 换热器 (5) 、 冷却器 (7) 串联后通过第一管路 (2201) 与互为串 联的多个臭氧发生器 (8) 连接, 各互为串联的多个臭氧发生器 (8) 通过第二管路 (2202) 与预臭氧化处理装置 (19) 连接, 使制备的臭 氧运输至预臭氧化处理装置 (19) 内; 还包括用于提取河流、 湖泊源 水的源水提升装置 (16) , 所述源水提升装置 (16) 通过一级提升泵 (1601) 将源水输送至预过滤装置 (17) , 所述预过滤装置 (17) 通 过引水罐 (171) 、 增压泵 (18) 、 第三管路 (2203) 、 二级提升泵
(1901) 将水输送至预臭氧化处理装置 (19) , 所述预臭氧化处理装 置 (19) 用于将水与臭氧相溶; 所述预臭氧化处理装置 (19) 通过文 丘里管 (1902) 连接前置臭氧反应器组 (20) , 所述前置臭氧反应器 组 (20) 与脱气室组 (21) 、 地下中间脱气中间水池 (6) 连接并通 过三级提升泵 (9) 将脱气后源水输送至超滤膜 (14) , 所述超滤膜
(14) 通过管路与地下清水池 (25) 连接, 所述地下清水池 (25) 通 过超滤出水管及四级提升泵 (26) 将水排出至用户使用。
[权利要求 2] 如权利要求 1所述的原生态水处理系统, 其特征在于: 还包括互为串 联的空气压缩机 (2) 及压缩空气罐 (3) , 所述空气压缩机 (2) 、 压缩空气罐 (3) 通过第四管路 (2204) 与反冲洗水泵 (11) 连接并 通过反洗进水管 (2205) 连接超滤膜 (14) 。
[权利要求 3] 如权利要求 1所述的原生态水处理处理系统, 其特征在于: 还包括用 于去除水中色度、 气味及有机污染物的后置臭氧反应器 (13) , 后置 臭氧反应器 (13) 与第二管路 (2202) 连接, 所述后置臭氧反应器 ( 13) 还通过第五管路 (2206) 与接触池 (12) 连接。
[权利要求 4] 如权利要求 1所述的原生态水处理系统, 其特征在于: 所述臭氧发生 器为板式臭氧发生器; 所述超滤膜为耐强氧化超滤膜。
[权利要求 5] 如权利要求 1所述的原生态水处理处理系统, 其特征在于: 所述超滤 膜 (14) 还通过第六管路 (2208) 与化学清洗装置 (24) 连接, 所述 化学清洗装置 (24) 用于进一步清洗超滤膜内部污染物, 清洗吋间间 隔为 12-18个月, 所述污染物通过反洗出水管 (2207) 排出。
如权利要求 1所述的原生态水处理处理系统, 其特征在于: 所述预过 滤装置 (17) 包括预格网过滤装置及预沉淀装置, 所述预格网过滤装 置用于实现河流、 湖泊源水中的固体及液体分离, 并通过反冲洗实现 源水内颗粒物的去除; 所述预沉淀装置用于处理因雨水季节带来的高 浊度沉积物。
如权利要求 1所述的原生态水处理处理系统, 其特征在于: 若源水浊 度大于 150mg/l吋设置预沉淀装置 (23) , 所述预沉淀装置 (23) 与 源水提升装置 (16) 连接。
如权利要求 1所述的原生态水处理处理系统, 其特征在于: 所述超滤 膜 (14) 、 预过滤装置也与反洗出水管 (2207) 连接。
一种利用权利要求 1所述原生态水处理系统进行水处理的水处理工艺 , 其特征在于包括以下步骤:
第一步: 由源水提升装置通过一级提升泵将河流、 湖泊的源水引入预 过滤装置;
第二步: 由液氧罐、 换热器及臭氧发生器制造臭氧并通过二级提升泵 将臭氧送入预臭氧化处理装置, 利用预臭氧化处理装置使臭氧与源水 相溶。
第三步: 相溶的臭氧与源水通过文丘里管接触后进入前置臭氧反应器 组, 臭氧在前置臭氧反应器组内进行强氧化反应;
第四步: 臭氧在强氧化反应后与源水通过管道进入脱气室组, 对臭氧 中不溶解源水的气体进行脱气形成氧气, 未脱气完毕的臭氧形成微臭 氧并与源水流入地下中间脱气水池;
第五步: 带有微臭氧的源水通过三级提升泵提升进入超滤膜内部并进 行微泡反应, 源水直接进入超滤膜膜体内部过滤并连续超滤出水。 如权利要求 9所述的利用原生态水处理系统进行水处理的水处理工艺 , 其特征在于: 所述强氧化反应用于处理源水中有机污染物、 无机污 染物及重金属, 流出预臭氧化处理装置的带有臭氧的源水包含易溶解 或小于 300微米的污染物。
如权利要求 9所述的利用原生态水处理系统进行水处理的水处理工艺 , 其特征在于: 所述第五步中源水连续超滤出水包含多种后处理出水 模式, 所述后处理出水模式包括正常出水、 活性炭过滤出水及后臭氧 出水。
如权利要求 9所述的原生态水处理系统进行水处理的水处理工艺, 其 特征在于: 在所述微泡反应中, 通过三级提升泵提升的源水中的气泡 向超滤膜膜体行进过程中体积呈逐渐递减, 在超滤膜膜体外表面连续 爆炸, 使附着于超滤膜膜体表面的污染物沉落至超滤膜底部。
如权利要求 9所述的利用原生态水处理系统进行水处理的水处理工艺 , 其特征在于: 所述后臭氧出水吋, 由后置臭氧反应器通过第五管路 与接触池连接并将臭氧与超滤出水接触反应。
如权利要求 9所述的利用原生态水处理系统进行水处理的水处理工艺 , 其特征在于: 超滤膜反冲洗由空气压缩机、 压缩空气罐及反冲洗水 泵提取地下清水池清水并通过反洗进水管向超滤膜输送汽水混合水进 行每组超滤膜的阶梯式反洗, 反冲洗后的水通过反洗出水管排出。
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