CN111517592A - A bromine-containing organic wastewater treatment system - Google Patents
A bromine-containing organic wastewater treatment system Download PDFInfo
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Abstract
Description
技术领域technical field
本发明涉及一种含溴有机废水处理系统,属于废水处理服务技术领域。The invention relates to a bromine-containing organic wastewater treatment system, which belongs to the technical field of wastewater treatment services.
技术背景technical background
四溴双酚A的生产过程中会产生大量高浓度有机废水,这种废水含有大量难降解有机物,目前我国大部分含溴废水水处理工艺落后,设备老化,处理效率低,无法满足国家或地方制定的更为严格的新污水排放标准,含溴废水的处理成为一个亟需解决的问题。In the production process of tetrabromobisphenol A, a large amount of high-concentration organic wastewater will be produced. This wastewater contains a large amount of refractory organic substances. At present, most of the bromine-containing wastewater in my country has backward water treatment processes, aging equipment and low treatment efficiency, which cannot meet national or local requirements. The more stringent new sewage discharge standards formulated, the treatment of bromine-containing wastewater has become an urgent problem to be solved.
发明内容SUMMARY OF THE INVENTION
本发明的目的是为了解决含溴废水水处理工艺落后,设备老化,处理效率低,无法满足国家或地方制定更为严格的新污水排放标准的问题。The purpose of the present invention is to solve the problems of backward bromine-containing wastewater water treatment process, aging equipment, low treatment efficiency, and inability to meet the stricter new sewage discharge standards formulated by the state or locality.
一种含溴有机废水处理系统,包括厌氧池和好氧池,臭氧反应塔安装于生化厌氧池和好氧池之间,确保废水中部分可生化的有机物优先进行水解酸化反应,所述的厌氧池和臭氧反应塔之间还设有沉淀池,所述的臭氧反应塔和好氧池之间还设有缓冲池。A bromine-containing organic wastewater treatment system includes an anaerobic tank and an aerobic tank, and an ozone reaction tower is installed between the biochemical anaerobic tank and the aerobic tank to ensure that part of the biodegradable organic matter in the wastewater is preferentially hydrolyzed and acidified. A sedimentation tank is also arranged between the anaerobic tank and the ozone reaction tower, and a buffer tank is also arranged between the ozone reaction tower and the aerobic tank.
本发明将臭氧生物碳反应塔安装于生化厌氧池和好氧之间,确保废水中部分可生化的有机物优先进行水解酸化反应,剩余的大分子难生化的有机物通过臭氧氧化作用降解为可生化降解的小分子有机物,在通过好氧活性菌进行处理,可将废水中有机物含量处理至最低,最终通过活性碳塔内活性碳的吸附和生长在活性炭表面的好氧细菌的生物代谢作用,吸附降解污水中的污染物质,使废水处理达标。节省了大量的臭氧消耗,并拥有完善的污泥回流和处理系统,确保生化各阶段污泥处理废水所需浓度,且不产生二次污染。In the present invention, the ozone biological carbon reaction tower is installed between the biochemical anaerobic tank and the aerobic tank, so as to ensure that part of the biodegradable organic matter in the wastewater is preferentially hydrolyzed and acidified, and the remaining macromolecular and difficult biodegradable organic matter is degraded into biodegradable through ozone oxidation. The degraded small-molecule organic matter can be treated by aerobic active bacteria to minimize the organic matter content in wastewater, and finally through the adsorption of activated carbon in the activated carbon tower and the biological metabolism of aerobic bacteria growing on the surface of activated carbon, adsorption Degrade the pollutants in the sewage, so that the wastewater treatment can meet the standards. It saves a lot of ozone consumption, and has a complete sludge return and treatment system to ensure the required concentration of sludge treatment wastewater at all biochemical stages without secondary pollution.
附图说明Description of drawings
图1是本发明结构示意图。Figure 1 is a schematic structural diagram of the present invention.
图2是本发明物料流向示意图。Figure 2 is a schematic diagram of the material flow of the present invention.
具体实施方式Detailed ways
本发明不受下述实施例的限制,可根据本发明的技术方案和实际情况来确定具体的实施方式。The present invention is not limited by the following examples, and specific implementations can be determined according to the technical solutions and actual conditions of the present invention.
如图1和图2所示,本发明有以下几个部分组成:As shown in Figure 1 and Figure 2, the present invention consists of the following parts:
工业污水水管线1、生活污水管线2、一号调节池3、二号调节池4、一号厌氧池5、二号厌氧池6、沉淀池7、臭氧塔提升泵8、臭氧反应塔9、缓冲池10、一号好氧池11、二号好氧池12、MBR池13、MBR膜出水泵14、一号排水池15、生物碳塔提升泵16、生物碳反应塔17、二号排水池18、风机19、曝气管线20、臭氧管线21、排水管线22、污泥浓缩池23、上清液回流管线24、污泥管线25。Industrial sewage water pipeline 1, domestic sewage pipeline 2, No. 1 regulating tank 3, No. 2 regulating tank 4, No. 1 anaerobic tank 5, No. 2
其中,一号调节池3、二号调节池4、沉淀池7、MBR池13、一号排水池15均安装液位变送器,二号调节池4、一号厌氧池5、二号厌氧池6、MBR池13安装温度计,一号排水池15与二号排水池18安装溢流管线。Among them, No. 1 regulating tank 3, No. 2 regulating tank 4,
生活污水管线2前端设有两级格栅即粗格栅、细格栅,截留生活污水中悬浮物和漂浮物,一号调节池3底部安装不锈钢穿孔曝气管线,通过曝气作用混合池内工业污水和生活污水,二号调节池4设有蒸汽加热系统,确保生化系统进水温度达到微生物所需温度,一号厌氧池5和二号厌氧池6底部设有布水系统和搅拌装置、中层安装弹性填料、并安装污泥回流系统,一号接触氧化池11和二号接触氧化池12底部设有曝气系统、中层设有组合填料,臭氧反应塔底部安装微孔曝气盘,沉淀池7底部安装排泥管线,MBR池13内安装中空纤维膜、底部安装曝气系统,生物碳反应塔17底部安装布水管和曝气盘、中层至上层依次填充鹅卵石、颗粒活性碳,活性碳上培养有活性污泥。The front end of the domestic sewage pipeline 2 is equipped with two-stage grilles, namely coarse grille and fine grille, to intercept suspended solids and floating objects in the domestic sewage. Sewage and domestic sewage, the No. 2 regulating tank 4 is equipped with a steam heating system to ensure that the inlet water temperature of the biochemical system reaches the temperature required by the microorganisms, the No. 1 anaerobic tank 5 and the No. 2
本模块是含溴废水处理系统,应用在水处理系统中的。含溴废水和生活污水分别通过工业污水管线1与生活污水管线2进入一号调节池3,通过一号调节池3底部不锈钢穿孔曝气管线曝气作用,充分混合后进入二号调节池4,二号调节池4内废水经过蒸汽加热系统加热至35-38℃后,由提升泵打进一号厌氧池5布水系统,废水再经一号厌氧池5溢流至二号厌氧池6布水系统,通过两个厌氧池池底部的搅拌装置使废水与池中的厌氧活性污泥充分混合进行水解酸化反应,降解废水中大部分有机物,大分子机物被厌氧活性微生物充分断链分解即水解酸化提高废水的可生化性;水解酸化后的废水进入沉淀池7,部分随废水溢流出的污泥沉淀在沉淀池7底部,底部污泥通过底部污泥管线定期回流至厌氧池内确保厌氧池内的污泥浓度,防止污泥流失;上清液经过臭氧塔提升泵8提升至臭氧反应塔9,废水经过臭氧氧化,部分可降解的有机物被氧化降解,剩余大分子有机物通过臭氧氧化断链为可生化的小分子有机物,提高后续废水的可生化性;经过臭氧氧化后的废水溢流进入缓冲池10,经过缓冲池10停留作用,使废水中臭氧充分散出;废水经缓冲池10溢流入一号好氧池11,由一号好氧池11溢流至二号好氧池12,通过好氧活性微生物大大降解经厌臭氧氧化后的废水中的有机物;废水经过二号好氧池12溢流至MBR池13,通过MBR膜出水泵将废水通过MBR膜过滤排至一号排水池15。This module is a bromine-containing wastewater treatment system, which is used in water treatment systems. Bromine-containing wastewater and domestic sewage enter No. 1 regulating tank 3 through industrial sewage pipeline 1 and domestic sewage pipeline 2 respectively, and pass through the aeration effect of stainless steel perforated aeration pipeline at the bottom of No. 1 regulating tank 3, and then enter No. 2 regulating tank 4 after being fully mixed. After the wastewater in No. 2 regulating tank 4 is heated to 35-38 ℃ by a steam heating system, it is pumped into the water distribution system of No. 1 anaerobic tank 5 by a lift pump, and the wastewater is then overflowed to No. 2 anaerobic tank 5 through No. 1 anaerobic tank 5
其中:若经生化后的废水达到新污水排放标准可直接将废水水由一号排水池15经排水管线22溢流至二号排水池18达标排放;若经生化后废水未达标,废水由一号外排池15经生物碳塔提升泵16提升至生物碳反应塔17,最终通过活性碳塔内活性碳的吸附和生长在活性炭表面的好氧细菌的生物代谢作用,吸附降解污水中的污染物质,使废水处理达标,达标后的废水进入二号排水池18外排。Among them: if the biochemical wastewater reaches the new sewage discharge standard, the wastewater can be directly discharged from the No. 1
生化过程中污泥回流系统:沉淀池7底部污泥泵将池底污泥定期回流至一号厌氧池5和二号厌氧池6,以保证厌氧池污泥浓度,剩余污泥直接排入污泥浓缩池23内静止,污泥浓缩池23上清液通过上清液回流管线24回流至一号调节池3内;MBR池13底部安装污泥管线,MBR池13产生的污泥通过污泥管线25回流至一号好氧池11,确保好氧池污泥浓度,剩余污泥直接排入污泥浓缩池23进行处理。Sludge return system in the biochemical process: the sludge pump at the bottom of the
本发明有以下优点:The present invention has the following advantages:
(1)有较高的污水处理效率,耐冲击负荷强,去除氮、磷、COD能力强,能够解决难处理含溴废水达标排放的难题,从而有利于保护环境;(1) It has high sewage treatment efficiency, strong impact load resistance, and strong ability to remove nitrogen, phosphorus and COD, which can solve the problem of up-to-standard discharge of difficult-to-treat bromine-containing wastewater, thereby helping to protect the environment;
(2)臭氧生物碳反应塔安装于生化厌氧池和好氧之间,确保废水中部分可生化的有机物优先进行水解酸化反应,剩余的大分子难生化的有机物通过臭氧氧化作用降解为可生化降解的小分子有机物,在通过好氧活性菌进行处理,可将废水中有机物含量处理至最低,最终通过活性碳塔内活性碳的吸附和生长在活性炭表面的好氧细菌的生物代谢作用,吸附降解污水中的污染物质,使废水处理达标。节省了大量的臭氧消耗,且不产生二次污染。(2) The ozone bio-carbon reaction tower is installed between the biochemical anaerobic tank and the aerobic tank to ensure that part of the biodegradable organic matter in the wastewater is preferentially hydrolyzed and acidified, and the remaining macromolecular and difficult biodegradable organic matter is degraded into biodegradable through ozone oxidation. The degraded small-molecule organic matter can be treated by aerobic active bacteria to minimize the organic matter content in wastewater, and finally through the adsorption of activated carbon in the activated carbon tower and the biological metabolism of aerobic bacteria growing on the surface of activated carbon, adsorption Degrade the pollutants in the sewage, so that the wastewater treatment can meet the standards. It saves a lot of ozone consumption and does not produce secondary pollution.
(3)拥有完善的污泥回流和处理系统,确保生化各阶段污泥处理废水所需浓度,不产生二次污染;(3) It has a complete sludge return and treatment system to ensure the required concentration of sludge treatment wastewater at each stage of biochemical treatment, without secondary pollution;
(4)采用臭氧氧化处理亦可保证含溴废水的色度,能够满足国家或地方制定的更为严格的新污水排放标准。(4) The use of ozone oxidation treatment can also ensure the chromaticity of bromine-containing wastewater, which can meet the more stringent new sewage discharge standards formulated by the state or local governments.
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CN213475693U (en) * | 2020-06-15 | 2021-06-18 | 天津长芦汉沽盐场有限责任公司 | Bromine-containing organic wastewater treatment system |
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