WO2018018657A1 - Rainwater sewage interception method based on membrane separation technique - Google Patents

Rainwater sewage interception method based on membrane separation technique Download PDF

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WO2018018657A1
WO2018018657A1 PCT/CN2016/094079 CN2016094079W WO2018018657A1 WO 2018018657 A1 WO2018018657 A1 WO 2018018657A1 CN 2016094079 W CN2016094079 W CN 2016094079W WO 2018018657 A1 WO2018018657 A1 WO 2018018657A1
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membrane separation
water
sewage
membrane
filtered water
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PCT/CN2016/094079
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French (fr)
Chinese (zh)
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赵龙
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深圳朝伟达科技有限公司
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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F1/00Methods, systems, or installations for draining-off sewage or storm water

Abstract

A rainwater sewage interception method based on a membrane separation technique, comprising the following steps: intercepting collected sewage, and discharging the intercepted sewage to a sewage treatment plant; overflowing sewage exceeding the intercepting capacity of an intercepting well, and enabling the overflowing sewage to enter a membrane separation device; filtering the overflowing sewage by means of the membrane separation device to form filtered water, and discharging the filtered water to a filtered water reservoir; and controlling the membrane separation device to discharge the filtered water to the filtered water reservoir when the water level of the filtered water reservoir is lower than the water outlet level of the membrane separation device. The method can be widely applied to municipal drainage, water body protection, water environment restoration, etc., and is used for the removal of pollutants, such as particulates, suspended matters, organics and heavy metals, from water, thus achieving the purpose of water body protection.

Description

基于膜分离技术的雨水截污方法Rainwater interception method based on membrane separation technology 技术领域Technical field
本发明涉及水处理领域,尤其涉及基于膜分离技术的雨水截污方法。The present invention relates to the field of water treatment, and more particularly to a method of rainwater interception based on membrane separation technology.
背景技术Background technique
以深圳市为例,据深圳市2013年第四季度环境状况公报显示,深圳河流“龙岗河和盐田河水质达到国家地表水Ⅴ类标准,其他主要河流中下游水质劣于Ⅴ类标准,主要污染物为氨氮和总磷。与上年同期相比,龙岗河水质保持为Ⅴ类;盐田河水质由Ⅱ类变为Ⅴ类,沙湾河水质类别由Ⅳ类变为劣Ⅴ类,水质明显变差;大沙河水质由Ⅴ类变为劣Ⅴ类,水质有所变差;布吉河和西乡河水质污染程度显著加重,新洲河污染程度明显加重,坪山河和福田河污染程度有所加重;凤塘河污染程度明显减轻,观澜河和皇岗河污染程度有所减轻;深圳河、茅洲河和王母河水质基本保持稳定”。Taking Shenzhen as an example, according to the Shenzhen State Environmental Status Bulletin for the fourth quarter of 2013, the water quality of the Longgang River and Yantian River in Shenzhen River reached the national surface water V standard, and the water quality in the middle and lower reaches of other major rivers was inferior to the V standard. It is ammonia nitrogen and total phosphorus. Compared with the same period of last year, the water quality of Longgang River is kept as Class V; the water quality of Yantian River is changed from Class II to Class V, and the water quality category of Shawan River is changed from Class IV to Class V, and the water quality is obviously deteriorated. The water quality of Dasha River changed from V to V, and the water quality deteriorated. The pollution degree of Buji River and Xixiang River was significantly increased. The pollution degree of Xinzhou River was obviously aggravated, and the pollution degree of Pingshan River and Futian River was aggravated. The pollution degree of Tanghe River was significantly reduced, and the pollution degree of Guanlan River and Huanggang River was reduced; the water quality of Shenzhen River, Maozhou River and Wangmu River remained basically stable.
降雨携带大量的污染物流入河流,形成明显的污染黑黄和黄蓝分界线;雨水的海洋的污染,致使海豚死亡。因此,如何控制面源污染,是保护河流水质的根本。The rainfall carries a large amount of pollutants into the river, forming a clear boundary between black and yellow and yellow and blue; the pollution of the ocean by rain causes the dolphins to die. Therefore, how to control non-point source pollution is fundamental to protecting river water quality.
水利部《水利发展规划(2011—2015年)》中指出,水利投资1.8万亿,主要用于洪涝灾害、干旱缺水、农田水力和农村饮水安全,其中防洪与管网工程基础投资将超过1万亿。环境保护部《国家环境保护“十二五”规划》提出,水污染治理投资4360亿元,其中管网投资3200亿元。住房建设部《全国城镇供水设施改造与建设“十二五”规划及2020年远景目标的通知》提出,城市供水总投资4100亿元,其中管网投资2678亿。三部委在十二五期间的水务总投资达2.65万亿。另外,2014年的《水污染防治行动计划》,提出在十二五规划的基础上,再增加投资达2万亿,即总的水务投资将达4.65万亿。The Ministry of Water Resources' Water Resources Development Plan (2011-2015) pointed out that water conservancy investment is 1.8 trillion yuan, mainly used for flood disasters, drought and water shortage, farmland water power and rural drinking water safety. The basic investment of flood control and pipeline network engineering will exceed 1 Trillion. The Ministry of Environmental Protection's "Twelfth Five-Year Plan for National Environmental Protection" proposed that the investment in water pollution control was 436 billion yuan, of which the investment in the pipe network was 320 billion yuan. The Ministry of Housing and Construction's "Twelfth Five-Year Plan for the Reconstruction and Construction of Urban Water Supply Facilities and the Vision of Vision 2020" proposes that the total investment in urban water supply is 410 billion yuan, of which the investment in pipe network is 267.8 billion. The total investment of the three ministries in the 12th Five-Year Plan period reached 2.65 trillion. In addition, the 2014 Water Pollution Prevention Action Plan proposes to increase investment by 2 trillion yuan on the basis of the 12th Five-Year Plan, that is, the total water investment will reach 4.65 trillion.
水环境治理是我国环境保护的软肋,如治理滇池已投入近300亿元,但水环境质量没有改善。因此,发明一种新型设施,用于控制面源污染,以达到保护水体的目的。Water environment management is the soft underbelly of China's environmental protection. For example, the management of Dianchi Lake has invested nearly 30 billion yuan, but the quality of water environment has not improved. Therefore, a new type of facility was invented for controlling surface source pollution to achieve the purpose of protecting water bodies.
截流井处于整个截流式合流制排水系统的枢纽部位,是整个系统的关键构 筑物。截流井形式的选择和内部构造的是否合理,对于截流系统的截流效果及溢流能力的影响是举足轻重的。目前国内外应用较多的截流井包括跳跃式截流井、截流槽式截流井、侧堰式截流井、旋流阀截流井等,综合来看,截流井及其改进型在技术与应用上都已经趋于成熟,取得了较为理想的截流效果,但都是只注重水力方面的效果而忽略了旱季污水及暴雨初期雨水给受纳水体带来的严重污染。国外的相关研究已经开展,也有相关产品的报道,如美国Imbrium Systems公司开发的产品Jelleyfish Filter等,但仍处于初级阶段。目前,在国内带有去污功能的新型截流井的研究与开发目前还未见相关报道。The intercepting well is at the pivot of the entire intercepting combined drainage system and is the key structure of the entire system. Building. The choice of the form of the intercepting well and the internal structure are reasonable, and the impact on the intercepting effect and overflow capacity of the intercepting system is very important. At present, most of the intercepting wells used at home and abroad include jumping intercepting wells, intercepting trough intercepting wells, side rake intercepting wells, swirling valve intercepting wells, etc. In general, the intercepting wells and their improved types are both in technology and application. It has matured and achieved a better interception effect, but it only pays attention to the hydraulic effect and ignores the serious pollution caused by the dry season sewage and the rainwater at the beginning of the rainstorm. Foreign related research has been carried out, as well as reports on related products, such as the Jelleyfish Filter developed by Imbrium Systems of the United States, but still in its infancy. At present, there is no relevant report on the research and development of new intercepting wells with decontamination function in China.
发明内容Summary of the invention
为了解决现有技术中的问题,本发明提供了一种基于膜分离技术的雨水截污装置。In order to solve the problems in the prior art, the present invention provides a rainwater intercepting device based on a membrane separation technique.
本发明提供了一种基于膜分离技术的雨水截污装置,包括:The invention provides a rainwater intercepting device based on a membrane separation technology, comprising:
截流井:用于收集污水进行截流,将截流的污水排入污水处理厂或河道;Interception well: used to collect sewage for interception, and discharge the intercepted sewage into a sewage treatment plant or river course;
溢流装置:用于对超出所述截流井截流能力的污水进行溢流,溢流的污水进入膜分离装置;The overflow device is configured to overflow the sewage exceeding the intercepting capacity of the intercepting well, and the overflowed sewage enters the membrane separating device;
膜分离装置:用于对溢流的污水进行过滤形成滤后水;Membrane separation device: used for filtering overflowed sewage to form filtered water;
滤后水贮水池:用于存储所述膜分离装置排出的滤后水;Filtered water storage tank: for storing filtered water discharged from the membrane separation device;
滤后水控制装置:当滤后水贮水池的水位低于所述膜分离装置出水水位时,控制所述膜分离装置将滤后水排入所述滤后水贮水池中;当滤后水贮水池的水位高于所述膜分离装置出水水位时,控制所述膜分离装置将滤后水排入自然的水体中;Filtered water control device: when the water level of the filtered water storage tank is lower than the water level of the membrane separation device, the membrane separation device is controlled to discharge the filtered water into the filtered water storage tank; When the water level of the water storage tank is higher than the water level of the membrane separation device, the membrane separation device is controlled to discharge the filtered water into the natural water body;
反冲洗装置:用于将所述滤后水贮水池中的水反向流至所述膜分离装置,对所述膜分离装置进行反冲洗。Backwashing device: for reversing the water in the filtered water storage tank to the membrane separation device, and backwashing the membrane separation device.
作为本发明的进一步改进,该雨水截污装置还包括:As a further improvement of the present invention, the rainwater intercepting device further comprises:
截流污泥排泥装置:用于将所述截流井截流的污泥、及对所述膜分离装置进行反冲洗得到的污泥收集集中运送到垃圾处理场或其他场所。The intercepting sludge sludge discharging device: the sludge for intercepting the intercepting well and the sludge collected by backwashing the membrane separating device are collectively transported to a garbage disposal site or other places.
作为本发明的进一步改进,该雨水截污装置还包括:As a further improvement of the present invention, the rainwater intercepting device further comprises:
贮水池排水装置:用于将所述滤后水贮水池内的水排入自然的水体中。 Tank drain: used to drain water from the filtered water reservoir into a natural body of water.
作为本发明的进一步改进,所述溢流装置包括溢流堰、溢流管、溢流槽、限流阀。As a further improvement of the present invention, the overflow device includes a weir, an overflow pipe, an overflow tank, and a restriction valve.
作为本发明的进一步改进,所述膜分离装置采用超滤、纳滤、反渗透、微滤中的一种进行过滤,所述膜分离装置中的膜材料包括有机膜、无机膜、陶瓷膜、高分子膜、多层膜。As a further improvement of the present invention, the membrane separation device is filtered by one of ultrafiltration, nanofiltration, reverse osmosis, and microfiltration, and the membrane material in the membrane separation device includes an organic membrane, an inorganic membrane, a ceramic membrane, Polymer film, multilayer film.
作为本发明的进一步改进,该雨水截污装置还包括溢流污水存贮室,所述溢流污水存贮室用于存储超出所述截流井截流能力的污水,所述膜分离装置位于所述溢流污水存贮室内。As a further improvement of the present invention, the rainwater intercepting device further includes an overflow sewage storage chamber for storing sewage exceeding a intercepting capacity of the intercepting well, the membrane separating device being located Overflow sewage storage indoors.
作为本发明的进一步改进,所述截流井设有检查口,所述检查口用于检查、清理垃圾与维修截流井。As a further improvement of the present invention, the intercepting well is provided with an inspection port for inspecting, cleaning and repairing the intercepting well.
本发明还提供了一种基于膜分离技术的雨水截污方法,包括如下步骤:The invention also provides a rainwater interception method based on membrane separation technology, comprising the following steps:
截流步骤:用于收集污水进行截流,将截流的污水排入污水处理厂或河道;Interception step: used to collect sewage for interception, and discharge the intercepted sewage into a sewage treatment plant or river channel;
溢流步骤:用于对超出所述截流井截流能力的污水进行溢流,溢流的污水进入膜分离装置;Overflow step: for overflowing sewage exceeding the intercepting capacity of the intercepting well, and overflowing sewage enters the membrane separation device;
过滤步骤:通过膜分离装置对溢流的污水进行过滤形成滤后水,将滤后水排入滤后水贮水池;Filtration step: filtering the overflowed sewage through a membrane separation device to form filtered water, and discharging the filtered water into the filtered water storage tank;
控制步骤:当滤后水贮水池的水位低于所述膜分离装置出水水位时,控制所述膜分离装置将滤后水排入所述滤后水贮水池中;当滤后水贮水池的水位高于所述膜分离装置出水水位时,控制所述膜分离装置将滤后水排入自然的水体中;Control step: when the water level of the filtered water storage tank is lower than the water level of the membrane separation device, the membrane separation device is controlled to discharge the filtered water into the filtered water storage tank; when the filtered water storage tank is When the water level is higher than the water level of the membrane separation device, the membrane separation device is controlled to discharge the filtered water into the natural water body;
反冲洗步骤:用于将所述滤后水贮水池中的水反向流至所述膜分离装置,对所述膜分离装置进行反冲洗。A backwashing step: for reversing the water in the filtered water reservoir to the membrane separation device, and backwashing the membrane separation device.
作为本发明的进一步改进,该雨水截污方法还包括:将所述截流井截流的污泥、及对所述膜分离装置进行反冲洗得到的污泥收集集中运送到垃圾处理场或其他场所。As a further improvement of the present invention, the rainwater interception method further comprises: transporting sludge intercepted by the intercepting well and sludge collected by backwashing the membrane separation device to a garbage disposal site or other places.
作为本发明的进一步改进,所述膜分离装置采用超滤、纳滤、反渗透、微滤中的一种进行过滤,所述膜分离装置中的膜材料包括有机膜、无机膜、陶瓷膜、高分子膜、多层膜。As a further improvement of the present invention, the membrane separation device is filtered by one of ultrafiltration, nanofiltration, reverse osmosis, and microfiltration, and the membrane material in the membrane separation device includes an organic membrane, an inorganic membrane, a ceramic membrane, Polymer film, multilayer film.
本发明的有益效果是:本发明的基于膜分离技术的雨水截污装置及方法可以有效去除暴雨期的合流污水或雨水溢流带来的面源污染,保护水体清澈透明,最大限度减小污染;而且本发明可以广泛应用于城市排水、水体保护、水环境 修复等,进行水中颗粒物、悬浮物、有机质、重金属等污染物的去除,从则达到水体保护的目的。The invention has the beneficial effects that the rainwater intercepting device and the method based on the membrane separation technology of the invention can effectively remove the non-point source pollution caused by the confluent sewage or rainwater overflow during the rainstorm period, protect the water body from being clear and transparent, and minimize the pollution. And the invention can be widely applied to urban drainage, water body protection, water environment Repair, etc., the removal of particulates, suspended solids, organic matter, heavy metals and other pollutants in the water, from the purpose of water body protection.
附图说明DRAWINGS
图1是本发明的雨水截污装置原理框图。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram showing the principle of a rainwater intercepting device of the present invention.
图2是本发明的雨水截污装置一个实施例的原理图。2 is a schematic diagram of one embodiment of a rainwater intercepting device of the present invention.
图3是本发明的雨水截污装置另一个实施例的原理图。Figure 3 is a schematic diagram of another embodiment of the rainwater intercepting device of the present invention.
具体实施方式Detailed ways
如图1所示,本发明公开了一种基于膜分离技术的雨水截污装置,包括:As shown in FIG. 1 , the present invention discloses a rainwater intercepting device based on a membrane separation technology, comprising:
截流井:用于收集污水进行截流,将截流的污水排入污水处理厂或河道;Interception well: used to collect sewage for interception, and discharge the intercepted sewage into a sewage treatment plant or river course;
溢流装置:用于对超出所述截流井截流能力的污水进行溢流,溢流的污水进入膜分离装置;The overflow device is configured to overflow the sewage exceeding the intercepting capacity of the intercepting well, and the overflowed sewage enters the membrane separating device;
膜分离装置:用于对溢流的污水进行过滤形成滤后水;Membrane separation device: used for filtering overflowed sewage to form filtered water;
滤后水贮水池:用于存储所述膜分离装置排出的滤后水;Filtered water storage tank: for storing filtered water discharged from the membrane separation device;
滤后水控制装置:当滤后水贮水池的水位低于所述膜分离装置出水水位时,控制所述膜分离装置将滤后水排入所述滤后水贮水池中;当滤后水贮水池的水位高于所述膜分离装置出水水位时,控制所述膜分离装置将滤后水排入自然的水体中;Filtered water control device: when the water level of the filtered water storage tank is lower than the water level of the membrane separation device, the membrane separation device is controlled to discharge the filtered water into the filtered water storage tank; When the water level of the water storage tank is higher than the water level of the membrane separation device, the membrane separation device is controlled to discharge the filtered water into the natural water body;
反冲洗装置:用于将所述滤后水贮水池中的水反向流至所述膜分离装置,对所述膜分离装置进行反冲洗。Backwashing device: for reversing the water in the filtered water storage tank to the membrane separation device, and backwashing the membrane separation device.
该雨水截污装置还包括截流污泥排泥装置,截流污泥排泥装置用于将所述截流井截流的污泥、及对所述膜分离装置进行反冲洗得到的污泥集中运送到垃圾处理场或其他场所。The rainwater intercepting device further comprises a intercepting sludge sludge discharging device, wherein the sludge intercepting the intercepting well and the sludge obtained by backwashing the membrane separating device are collectively transported to the garbage Handling fields or other places.
该雨水截污装置还包括贮水池排水装置,该贮水池排水装置用于将所述滤后水贮水池内的水排入自然的水体中。The rainwater intercepting device further includes a water storage drain device for discharging water in the filtered water storage tank into a natural water body.
所述溢流装置包括溢流堰、溢流管、溢流槽、限流阀。The overflow device includes a weir, an overflow pipe, an overflow tank, and a restriction valve.
所述膜分离装置采用超滤、纳滤、反渗透、微滤中的一种进行过滤,所述膜分离装置中的膜材料包括有机膜、无机膜、陶瓷膜、高分子膜、多层膜。The membrane separation device is filtered by one of ultrafiltration, nanofiltration, reverse osmosis, and microfiltration. The membrane material in the membrane separation device includes an organic membrane, an inorganic membrane, a ceramic membrane, a polymer membrane, and a multilayer membrane. .
该雨水截污装置还包括溢流污水存贮室,所述溢流污水存贮室用于存储超出所述截流井截流能力的污水,所述膜分离装置位于所述溢流污水存贮室内。The rainwater intercepting device further includes an overflow sewage storage chamber for storing sewage exceeding a intercepting capacity of the intercepting well, the membrane separating device being located in the overflow sewage storage chamber.
所述截流井设有检查口,所述检查口用于检查、清理垃圾与维修截流井。The intercepting well is provided with an inspection port for inspecting, cleaning and repairing the intercepting well.
本发明还公开了一种基于膜分离技术的雨水截污方法,包括如下步骤:The invention also discloses a rainwater interception method based on membrane separation technology, comprising the following steps:
截流步骤:用于收集污水进行截流,将截流的污水排入污水处理厂或河道。 Interception step: used to collect sewage for interception, and discharge the intercepted sewage into a sewage treatment plant or river course.
溢流步骤:用于对超出所述截流井截流能力的污水进行溢流,溢流的污水进入膜分离装置;Overflow step: for overflowing sewage exceeding the intercepting capacity of the intercepting well, and overflowing sewage enters the membrane separation device;
过滤步骤:通过膜分离装置对溢流的污水进行过滤形成滤后水,将滤后水排入滤后水贮水池;Filtration step: filtering the overflowed sewage through a membrane separation device to form filtered water, and discharging the filtered water into the filtered water storage tank;
控制步骤:当滤后水贮水池的水位低于所述膜分离装置出水水位时,控制所述膜分离装置将滤后水排入所述滤后水贮水池中;当滤后水贮水池的水位高于所述膜分离装置出水水位时,控制所述膜分离装置将滤后水排入自然的水体中;Control step: when the water level of the filtered water storage tank is lower than the water level of the membrane separation device, the membrane separation device is controlled to discharge the filtered water into the filtered water storage tank; when the filtered water storage tank is When the water level is higher than the water level of the membrane separation device, the membrane separation device is controlled to discharge the filtered water into the natural water body;
反冲洗步骤:用于将所述滤后水贮水池中的水反向流至所述膜分离装置,对所述膜分离装置进行反冲洗。A backwashing step: for reversing the water in the filtered water reservoir to the membrane separation device, and backwashing the membrane separation device.
该雨水截污方法还包括:将所述截流井截流的污泥、及对所述膜分离装置进行反冲洗得到的污泥集中运送到垃圾处理场或其他场所厂。The rainwater interception method further comprises: transporting sludge intercepted by the intercepting well and sludge obtained by backwashing the membrane separation device to a garbage disposal site or other place factory.
所述膜分离装置采用超滤、纳滤、反渗透、微滤中的一种进行过滤,所述膜分离装置中的膜材料包括有机膜、无机膜、陶瓷膜、高分子膜、多层膜。The membrane separation device is filtered by one of ultrafiltration, nanofiltration, reverse osmosis, and microfiltration. The membrane material in the membrane separation device includes an organic membrane, an inorganic membrane, a ceramic membrane, a polymer membrane, and a multilayer membrane. .
本发明中的污水包括合流污水及雨水,本发明中自然的水体包括河流、湖泊、水库、海洋中的水体。The sewage in the present invention includes combined sewage and rainwater, and the natural water body in the present invention includes rivers, lakes, reservoirs, and water bodies in the ocean.
膜分离装置包括进水口和出水口,膜分离装置可以是一体式、组合式、现场建设式等各种形式。膜分离装置可以是金属、塑料、砼、钢筋砼、砖石等。The membrane separation device includes a water inlet and a water outlet, and the membrane separation device may be in various forms such as an integrated type, a combined type, and a field construction type. The membrane separation device may be metal, plastic, tantalum, reinforced concrete, masonry, or the like.
滤后水贮水池可以是地下式、封闭式、敞开式、或地下管道式等各种贮水设施,滤后水贮水池有单独进出水通道。The filtered water storage tank can be various storage facilities such as underground, closed, open, or underground pipelines. The filtered water storage tank has separate inlet and outlet channels.
滤后水贮水池中的水可以直接排入自然的水体,或消毒后排入自然的水体。The water in the filtered water tank can be discharged directly into the natural water body, or discharged into a natural water body after disinfection.
滤后水贮水池中的水可以排入污水管道,送至污水处理厂。The water in the filtered water storage tank can be discharged into the sewage pipeline and sent to the sewage treatment plant.
滤后水贮水池为膜分离装置提供反冲洗用水;滤后水贮水池反冲洗强度,可以固定,也可以变化,也可以按照膜材料和设施确定;滤后水贮水池反冲洗时间,可以固定,也可以变化,也可以按照膜材料和设施确定;滤后水贮水池反冲洗水头,可以固定,也可以变化,也可以按照膜材料和设施确定;滤后水贮水池反冲洗方式,可以固定,也可以变化,也可以按照膜材料和设施确定。The filtered water storage tank provides backwashing water for the membrane separation device; the backwashing strength of the filtered water storage tank can be fixed or varied, and can also be determined according to the membrane material and facilities; the backwashing time of the filtered water storage tank can be fixed. , can also be changed, can also be determined according to the membrane material and facilities; the backwash head of the filtered water storage tank can be fixed or changed, or can be determined according to the membrane material and facilities; the filtered water tank backwashing method can be fixed It can also be changed or determined by membrane materials and facilities.
截留污泥是来自膜分离设施,也可以来自滤后水排泥;截留污泥可以在雨后排入污水管网,截留污泥可以定期人工清理,截留污泥可以再生利用。截留污泥系统可以有监测系统,截留污泥系统可以有自动控制系统,截留污泥系统可以有水位控制系统,截留污泥系统可以有除臭系统,截留污泥系统可以有防人畜坠落系统。 The intercepted sludge is from the membrane separation facility, and can also be discharged from the filtered water; the intercepted sludge can be discharged into the sewage pipe network after the rain, and the intercepted sludge can be manually cleaned regularly, and the intercepted sludge can be recycled. The intercepting sludge system can have a monitoring system, the intercepting sludge system can have an automatic control system, the intercepting sludge system can have a water level control system, the intercepting sludge system can have a deodorizing system, and the intercepting sludge system can have an anti-human falling system.
本发明的截流井可以通过加絮凝剂,增加截留效率。本发明的雨水截污装置可以增加气浮曝气系统、旋流分离器、真空抽吸装置。The shut-off well of the present invention can increase the retention efficiency by adding a flocculating agent. The rainwater intercepting device of the present invention can increase the air flotation aeration system, the cyclone separator, and the vacuum suction device.
暴雨过后,滤后水贮水池的水反向流至膜分离装置,进行膜分离装置反冲洗。After the rainstorm, the water in the filtered water storage tank flows back to the membrane separation device, and the membrane separation device is backwashed.
在滤后水贮水池,设置水位感知设备,用于感知水位变化。In the filtered water storage tank, a water level sensing device is provided for sensing the water level change.
在膜过滤装置中,设置水流和水位感知设备,用于感知水量(或降雨量)变化。In the membrane filtration device, a water flow and water level sensing device is provided for sensing changes in water volume (or rainfall).
在截流井处,设置水流感知设备,用于感知水量变化。At the intercepting well, a water flow sensing device is provided for sensing the change in water volume.
在膜分离装置处,设置污泥提升泵,用于提升截流污泥至污水处理厂。或在膜分离装置处,设置污泥存贮池,用于存贮截留污泥,并定期清除截留污泥。At the membrane separation unit, a sludge lift pump is provided for lifting the intercepted sludge to the sewage treatment plant. Or at the membrane separation unit, a sludge storage tank is provided for storing the intercepted sludge and periodically removing the trapped sludge.
在滤水后贮水池处,通过水位控制,在暴雨过后进行自动反冲洗,也可以设置提升泵站,用于对膜分离装置进行反冲洗。At the water storage tank, the water level control, automatic backwashing after the rainstorm, or a lift pump station for backwashing the membrane separation device.
在膜分离装置处,设置控制中心,用于控制工艺自动化运行。At the membrane separation unit, a control center is provided for controlling the process automation.
如图2所示,作为本发明的一个实施例,在图2中,A表示合流污水或雨水来水,B表示合流污水或雨水进水管,C表示截流的合流污水或初期雨水排水管,至污水处理厂;D表示溢流堰,按照截流井的截流倍数设计;E表示单向阀或拍门,用于返冲洗排水,不允许合流污水进入溢流污水存贮室;F表示溢流污水存贮室,G表示膜分离装置,H表示滤后水进入滤后水贮水池,I表示滤后水贮水池,J表示滤后水贮水池的排水管,K表示滤后水排放至就近水体,L表示截流井检查口,用于检查、清理垃圾与维修截流井;M表示滤后水反冲洗回水,N表示反冲洗水把膜分离装置上的污物冲洗下来;P表示滤后污水与返冲洗污水排放口,是单向阀式结构。As shown in FIG. 2, as an embodiment of the present invention, in FIG. 2, A denotes combined sewage or rainwater, B denotes a combined sewage or rainwater inlet pipe, and C denotes a combined combined sewage or initial rainwater drainage pipe, to Sewage treatment plant; D means overflow weir, designed according to the interception multiple of the intercepting well; E means check valve or gate, used for backwashing drainage, not allowing confluent sewage to enter the overflow sewage storage room; F means overflow sewage Storage room, G means membrane separation device, H means filtered water enters filtered water storage tank, I means filtered water storage tank, J means drainage pipe of filtered water storage tank, K means filtered water discharge to nearby water body L indicates the intercepting well inspection port for inspection, cleaning and maintenance of the intercepting well; M indicates that the filtered water is backwashed back to the water, N indicates that the backwashing water flushes the dirt on the membrane separation device; P indicates the filtered sewage With the flushing sewage discharge port, it is a one-way valve structure.
如图3所示,作为本发明的另一个实施例,在图3中,A表示合流污水或雨水来水,B表示合流污水或雨水进水管,C表示截流的合流污水或初期雨水排水管,至污水处理厂;D表示溢流堰,按照截流井的截流倍数设计;E表示单向阀或拍门,用于返冲洗排水,不允许合流污水进入溢流污水存贮室;F表示溢流污水存贮室,G表示膜分离装置,H表示滤后水进入滤后水贮水池,I表示滤后水贮水池,J表示滤后水贮水池的排水管,K表示滤后水排放至就近水体,L表示截流井检查口,用于检查、清理垃圾与维修截流井;M表示滤后水反冲洗回水,N表示反冲洗水把膜分离装置上的污物冲洗下来;O表示污水提升泵,用于返冲洗时,把污水排出;P表示滤后污水与返冲洗污水排放口,是单向阀式结构;Q表示污水泵吸水管,从溢流污水存贮室取水;R表示污水泵出水管,把过滤污泥 与反冲洗水排入污水处理厂。As shown in FIG. 3, as another embodiment of the present invention, in FIG. 3, A denotes combined sewage or rainwater, B denotes a combined sewage or rainwater inlet pipe, and C denotes a combined combined sewage or initial rainwater drainage pipe, To the sewage treatment plant; D means overflow weir, designed according to the interception multiple of the intercepting well; E means check valve or gate, used for backwashing drainage, not allowing confluent sewage to enter the overflow sewage storage room; F means overflow Sewage storage room, G means membrane separation device, H means filtered water enters filtered water storage tank, I means filtered water storage tank, J means drainage pipe of filtered water storage tank, K means filtered water discharge to the nearest Water body, L indicates the inspection port of the intercepting well, used for inspection, cleaning and maintenance of the intercepting well; M indicates that the filtered water is backwashed back to the water, N indicates that the backwashing water flushes the dirt on the membrane separation device; O indicates the sewage lifting The pump is used to discharge the sewage when it is returned to the flush; P represents the filtered sewage and the backwashing sewage discharge port, which is a one-way valve type structure; Q represents the sewage pump suction pipe, and the water is taken from the overflow sewage storage room; R represents the sewage Pump out water pipe, filter Mud Discharge with the backwash water into the sewage treatment plant.
本发明的基于膜分离技术的雨水截污装置及方法可以有效去除暴雨期的合流污水或雨水溢流带来的面源污染,保护水体清澈透明,最大限度减小污染;而且本发明可以广泛应用于城市排水、水体保护、水环境修复等,进行水中颗粒物、悬浮物、有机质、重金属等污染物的去除,从则达到水体保护的目的。The rainwater intercepting device and method based on the membrane separation technology of the invention can effectively remove the non-point source pollution caused by the confluent sewage or rainwater overflow during the rainstorm period, protect the water body from being clear and transparent, and minimize the pollution; and the invention can be widely applied In the urban drainage, water protection, water environment repair, etc., the removal of particulate matter, suspended matter, organic matter, heavy metals and other pollutants in the water, from the purpose of water body protection.
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明,不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本发明的保护范围。 The above is a further detailed description of the present invention in connection with the specific preferred embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.

Claims (10)

  1. 一种基于膜分离技术的雨水截污方法,其特征在于,包括如下步骤:A rainwater interception method based on membrane separation technology, comprising the following steps:
    截流步骤:用于收集污水进行截流,将截流的污水排入污水处理厂;Interception step: used to collect sewage for interception, and discharge the intercepted sewage into the sewage treatment plant;
    溢流步骤:用于对超出所述截流井截流能力的污水进行溢流,溢流的污水进入膜分离装置;Overflow step: for overflowing sewage exceeding the intercepting capacity of the intercepting well, and overflowing sewage enters the membrane separation device;
    过滤步骤:通过膜分离装置对溢流的污水进行过滤形成滤后水,将滤后水排入滤后水贮水池;Filtration step: filtering the overflowed sewage through a membrane separation device to form filtered water, and discharging the filtered water into the filtered water storage tank;
    控制步骤:当滤后水贮水池的水位低于所述膜分离装置出水水位时,控制所述膜分离装置将滤后水排入所述滤后水贮水池中;当滤后水贮水池的水位高于所述膜分离装置出水水位时,控制所述膜分离装置将滤后水排入自然的水体中。Control step: when the water level of the filtered water storage tank is lower than the water level of the membrane separation device, the membrane separation device is controlled to discharge the filtered water into the filtered water storage tank; when the filtered water storage tank is When the water level is higher than the water level of the membrane separation device, the membrane separation device is controlled to discharge the filtered water into the natural water body.
  2. 根据权利要求1所述的雨水截污方法,其特征在于,说述雨水截污方法还包括:将所述截流井截流的污泥。The rainwater interception method according to claim 1, wherein the rainwater interception method further comprises: sludge intercepting the intercepting well.
  3. 根据权利要求1所述的雨水截污方法,其特征在于,所述膜分离装置进行反冲洗得到的污泥排入污水处理厂。The rainwater interception method according to claim 1, wherein the sludge obtained by the membrane separation device is discharged into a sewage treatment plant.
  4. 根据权利要求1所述的雨水截污方法,其特征在于,所述膜分离装置采用超滤、纳滤、反渗透、微滤中的一种进行过滤。The rainwater interception method according to claim 1, wherein the membrane separation device performs filtration using one of ultrafiltration, nanofiltration, reverse osmosis, and microfiltration.
  5. 根据权利要求4所述的雨水截污方法,其特征在于,所述膜分离装置中的膜材料包括有机膜。The rainwater interception method according to claim 4, wherein the membrane material in the membrane separation device comprises an organic membrane.
  6. 根据权利要求4所述的雨水截污方法,其特征在于,所述膜分离装置中的膜材料包括有无机膜。The rainwater interception method according to claim 4, wherein the membrane material in the membrane separation device comprises an inorganic membrane.
  7. 根据权利要求4所述的雨水截污方法,其特征在于,所述膜分离装置中的膜材料包括有陶瓷膜。The rainwater interception method according to claim 4, wherein the membrane material in the membrane separation device comprises a ceramic membrane.
  8. 根据权利要求4所述的雨水截污方法,其特征在于,所述膜分离装置中的膜材料包括有高分子膜。The rainwater interception method according to claim 4, wherein the membrane material in the membrane separation device comprises a polymer membrane.
  9. 根据权利要求4所述的雨水截污方法,其特征在于,所述膜分离装置中的膜材料包括有多层膜。The rainwater interception method according to claim 4, wherein the film material in the membrane separation device comprises a multilayer film.
  10. 根据权利要求1所述的雨水截污方法,其特征在于,还包括反冲洗步骤: 用于将所述滤后水贮水池中的水反向流至所述膜分离装置,对所述膜分离装置进行反冲洗。 The rainwater interception method according to claim 1, further comprising a backwashing step: The water in the filtered water reservoir is reversely flowed to the membrane separation device, and the membrane separation device is backwashed.
PCT/CN2016/094079 2016-07-28 2016-08-09 Rainwater sewage interception method based on membrane separation technique WO2018018657A1 (en)

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