出口医疗一体化污水处理设备
编辑:出口污水处理设备 来自:https://www.zqwscl.com /日期:2023-03-25 13:03 / 人气:
医院污水含有大量有机污染物以及传染性细菌、病毒和有毒有害的化学物,相较于一般污水具有更强的危害性,如果不经过净化处理,将导致传染病疫情的爆发甚至流行。因此,在医院污水排入市政管道之前必须经过有效的无害化处理,经检测达标后方可排放,尤其是在春季传染疾病中显得尤为重要。然而,医疗污水成分的复杂性导致了医院污水处理过程中普遍存在效率低、成本高、人力资源浪费等严重问题,为改善这一现状,中侨启迪对污水处理设备进行了改革创新,提高了污水处理效率的同时也加强了医院污水处理自动化管理。
不同医疗机构的污水量、水质以及排放去向的不同,使用的处理工艺也会有所差异,具体可分为三类。一级污水处理,是一种比较简单的处理方式,主要使用沉淀+消毒的方法,这种处理工艺的设施主要包括:化粪池、沉淀池、调节池和消毒池。首先,通过对污水中的普通污染物进行过滤沉淀,之后加入含氯消毒剂对污水进行消毒。二级污水处理,主要是通过生物化学处理的方式对污水进行净化,以生物接触氧化法(利用滤料对水中的污染物进行吸附和分散)和常规活性淤泥法(通过淤泥的凝聚、吸附功能对水中的污染物进行氧化和分解)最为常见。三级污水处理,目的是去除不能被分解的有机物及各种病菌,包括物理法(辐射法、紫外线法、冷冻法等)和化学法(氯化法、臭氧法、表面活性剂法等)。一级污水处理的优点是简易且节约成本,但是对于含有大量复杂污染物的污水来说,净化程度较低。二级污水处理作为一种较为复杂的处理方式,可以对污水进行深度处理,但是易产生二次污染且成本过高。考虑到医疗综合废水属于可生化性较好的污水,废水中COD、BOD5、氨氮等常规指标相对较低,但是废水中粪大肠菌群含量较高,医院使用“接触氧化+气浮+消毒”的组合处理工艺,针对医院废水中的物理指标、有机物指标、微生物指标均采取了相应的处理措施,排放水满足GB18466-2005《医疗机构水污染物排放标准》中排放要求。
医院废水经收集管道汇流到格栅渠,经过机械格栅去除废水中的漂浮物,然后进入调节池。调节池主要是通过潜污泵和散流曝气装置对水量、水质进行调节,避免水量、水质的突变,同时避免污水沉淀,保证整个处理系统能够连续稳定地进水。接触氧化池是生化处理工艺的一种形式,是整个系统的核心,主要工作原理是向污水中充入一定的氧气,培养好氧菌,好氧菌与污水有效地接触能够充分降解污水中绝大部分有机物(COD和BOD)。污水离开接触氧化池进入气浮池,其中的微小颗粒物与悬浮物能够被有效地去除。气浮池主要是通过将一定压力的空气溶于水中,产生溶气水并释放到污水中,同时向污水中加入一定量的PAC(聚合氯化铝)和助凝剂PAM(聚丙烯酰胺),生成较大体积的固体颗粒物,利用溶气水的微小气泡吸附在固体颗粒物表面使其上浮至水面,气浮刮渣机将浮渣刮至浮渣池。污泥提升泵将浮渣池内的浮渣抽至污泥调理池,此时再加入混凝剂PAC和石灰乳并通过气动隔膜泵压至压滤机进行压榨形成浮渣。
经接触氧化池处理后的水进入消毒池经消毒处理后排入市政管道。作为医院污水,其中含有大量的细菌和病原体,为了防止疾病的传播,须加入足量的消毒剂并保证充分的消毒时间,以确保排放水中的细菌指标达到国家相关标准。
综上所述,医院污水处理不仅关系到生态环境的保护,还涉及公共卫生的要求。中侨启迪出口的一体化污水处理设备不仅提高了污水的净化程度,同时也改善了医院的生态环境,欢迎大家电话咨询或者下单采购。
Due to its particularity, hospital sewage will not only pollute the ecological environment, but also lead to sudden public health events. With the development of medical and health undertakings, hospitals have also increased the treatment of sewage. For the integrated medical sewage treatment equipment exported by Zhongqi Enlightenment, the effluent quality can meet the requirements of GB18466-2005 "Water Pollutant Discharge Standard for Medical Institutions".
Hospital sewage contains a large number of organic pollutants, infectious bacteria, viruses and toxic and harmful chemicals. Compared with general sewage, it is more harmful. If not purified treatment, it will lead to the outbreak and even epidemic of infectious diseases. Therefore, before the hospital sewage is discharged into the municipal pipeline, it must go through effective harmless treatment, and can be discharged after testing the standard, especially in the spring infectious diseases. However, the complexity of the medical sewage composition led to the widespread in the process of hospital sewage treatment, low efficiency, high cost, human resources waste of serious problems, to improve the situation, the enlightenment on the sewage treatment equipment innovation, improve the efficiency of sewage treatment and also strengthen the hospital sewage treatment automation management.
Different medical institutions of sewage volume, water quality and discharge direction, the use of the treatment technology will also be different, which can be divided into three categories. First-class sewage treatment is a relatively simple way of treatment, mainly using precipitation + disinfection method, the facilities of this treatment process mainly include: septic tank, sedimentation tank, regulating pool and disinfection pool. First, the common pollutants in the sewage were filtered and precipitated, and then a chlorine-containing disinfectant was added to disinfect the sewage. Secondary sewage treatment, mainly through the biochemical treatment of sewage purification, biological contact oxidation method (the use of filter material in the water pollutants adsorption and dispersion) and conventional active silt method (through the silt condensation, adsorption function of the water pollutants oxidation and decomposition) is the most common. Three-level sewage treatment, the purpose is to remove the organic matter and various bacteria that can not be decomposed, including physical method (radiation method, ultraviolet method, freezing method, etc.) and chemical method (chloride method, ozone method, surfactant method, etc.). The advantages of the first-class sewage treatment are simple and cost-saving, but for the sewage containing a large number of complex pollutants, the purification degree is low. As a more complex treatment method, the secondary sewage treatment can be deeply treated, but it is easy to produce secondary pollution and the cost is too high. Considering the medical comprehensive wastewater belongs to the biochemical good sewage, COD, BOD 5, ammonia nitrogen in wastewater conventional index is relatively low, but the wastewater fecal coliform content is higher, the hospital using the combination of "contact oxidation + air flotation + disinfection" treatment process, for the physical indicators, organic matter, microbial indicators in the hospital wastewater are corresponding measures, water discharge meet GB18466-2005 medical institutions water pollutant discharge standard discharge requirements.
The hospital wastewater flows to the grille canal through the collection pipeline, passes through the mechanical grille to remove the floating objects in the wastewater, and then enters the regulating tank. The regulating tank is mainly to adjust the water quantity and water quality through the submersible sewage pump and dispersing aeration device, to avoid the mutation of water quantity and water quality, and to avoid sewage precipitation, to ensure that the whole treatment system can continuously and stably enter water. Contact oxidation tank is a form of biochemical treatment process, which is the core of the whole system. The main working principle is to fill a certain amount of oxygen into the sewage, cultivate aerobic bacteria, aerobic bacteria and sewage effectively contact can fully degrade most of the organic matter (COD and BOD) in the sewage. The sewage leaves the contact oxidation tank and enters the air floating tank, in which the small particles and suspended matter can be effectively removed. Air tank is mainly by using a certain pressure of air dissolved in water, produce dissolved water and release into sewage, at the same time to add a certain amount of PAC (polyaluminum chloride) and coagulant PAM (polyacrylamide), generate large volume of solid particles, using dissolved water tiny bubble adsorption on the surface of solid particles to float to the surface, air scraper will float to the slag tank. The sludge lifting pump pumps the scum in the slag tank to the sludge conditioning tank, and at this time, the coagulation agent PAC and lime milk are added and the filter press is pressed through the pneumatic diaphragm pump to form the float.
The water treated by the oxidation tank enters the disinfection tank and then discharged into the municipal pipeline. As hospital sewage, it contains a large number of bacteria and pathogens. In order to prevent the spread of diseases, it is necessary to add sufficient disinfectant and ensure sufficient disinfection time to ensure that the bacterial indicators in the discharged water meet the relevant national standards.
To sum up, the hospital sewage treatment is not only related to the protection of the ecological environment, but also involves the requirements of public health. The integrated sewage treatment equipment exported by Zhongqi QiDi not only improves the purification degree of sewage, but also improves the ecological environment of the hospital. Welcome to call for consultation or order and purchase.
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