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本设计污水主要来源于生产过程生产设备冲洗水、车间地面冲洗水。该废水为高浓度有机废水,污水的可生化性属一般。在去除水中一般性污染物质,确保出水水质的同时,兼顾经济合理和运行... 本设计污水主要来源于生产过程生产设备冲洗水、车间地面冲洗水。该废水为高浓度有机废水,污水的可生化性属一般。在去除水中一般性污染物质,确保出水水质的同时,兼顾经济合理和运行管理的科学性,并考虑废水达标. 污水处理工艺:采用UASB厌氧塔、生物接触氧化法、沉淀和过滤。污泥处理及处置采用厢式压滤机减量后外运。栅渣及污泥的处理与处置:人工格栅栅渣采用定期人工清理,并与其他垃圾一并外运处置。UASB厌氧塔、二沉池污泥进入污泥池,进行浓缩后压滤脱水,干污泥外运。主要处理构筑物充分利用原有水池,如调节池、污泥池、中间水池,增设生物接触氧化池、二沉池,这些主要处理构筑物采取半地上式。主要处理设备和机房采取地上式,并做好地面上建筑物的装饰美化,以与园区内建筑风格协调。通过鼓风机房隔声、栅渣和污泥脱水外运等措施消除二次污染,整个工程的运行将不会影响现有环境,且大大改善了出水水质。
处理站的设计主要分为污水处理和污泥处理及处置两大部分。在污水处理中,根据水量、水质变化情况,结合污水本身所特有的情况,选择技术成熟、经济合理、运行灵活、管理方便、处理效果稳定的方案。在污泥处理与处置中,污水处理过程中产生污泥,应进行稳定处理,防止对环境造成二次污染;并妥善考虑污泥的最终处置。
对于污水处理技术主要概括如下:
1、拦污设施
废水中(制药废水)含有各类漂浮物质,需设置格栅加以拦截。以防止堵塞后续的水泵或处理设备;避免在后续水池内沉淀,增加检修次数。
人工格栅具有造价低,格栅拦截的栅渣人工定期清理。
2、水质水量的调节
由于污水排放的水量水质很不均匀,造成污水来水水质、水量波动较大,因此只有足够大的调节容量才能使进入生化处理的水质、水量稳定,因此必须设置均质调节池,进行水量水质的均衡,减轻后续处理构筑物的冲击负荷。
3、生物处理
污水经过调节池均质调节后,采用厌氧生物处理和好氧生物处理最经济的处理工艺,生物法工作过程为:通过驯化培养而聚集的优势微生物群体,在生长过程中利用周围环境中的营养物质即水中的有关污染物质进行新陈代谢,达到降解污染物、净化水质的目的。生物处理工艺按生物生长状态,分为活性污泥法、生物膜法。活性污泥工艺中生物以菌胶团的形式悬浮于水中,通过曝气混合分解污水中的污染物。活性污泥工艺按其运行方式分为:普通曝气池、氧化沟、SBR、A/O、A/A/O等,主要应用于大型的污水处理厂。除SBR工艺外,均需设置污泥回流泵,设备较多,所以SBR工艺在中、小型污水处理工程也有应用,但SBR工艺设计负荷较小,一般为0.1kgBOD5/m3∙d,占地面积较大,由于滗水需要,水池深度较大,同时自动控制设备较多,一旦设备故障或运行参数发生变化,必须对整个运行程序进行调整。同时小型污水处理采用活性污泥工艺,容易发生污泥膨胀引起污泥流失,使处理池内的污泥浓度得不到保证,从而影响处理效果。
设计原则
1、本设计方案严格执行国家有关环境保护的各项规定,污水处理后必须确保各项出水水质指标均达标排放。
2、采用简单、成熟、稳定、实用、经济合理的处理工艺,保证处理效果,并节省投资和运行管理费用。
3、设备选型兼顾通用性和先进性,运行稳定可靠、效率高、管理方便、维修维护工作量少、价格适中。
4、系统运行灵活、管理方便、维修简单,尽量考虑操作自动化,减少操作劳动强度。
5、设计美观、布局合理,与原有设施统一协调考虑。
6、设置必要的监控仪表,提高控制操作的自动化程度。
7、尽量采取措施减小对周围环境的影响,合理控制噪声、气味,妥善处理与处置固体废弃物,避免二次污染。
最后出水应达到中华人民共和国《污水综合排放标准》(GB8978-1996)中二级标准。
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九方弘阔sX
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The design of the sewage from the main production process rinse water production equipment, workshops ground water irrigation. The wastewater to the high concentration of organic wastewater, sewage biodegradability general. Removal of the contaminated material general to ensure that water quality at the same time, a reasonable balance between economic and operational management of the scientific, and consider wastewater standards. Sewage Treatment Process : UASB anaerobic tower, biological oxidation, precipitation and filtration. Sludge treatment and disposal of used filter Van reductions after progressed. Gate residue and sludge treatment and disposal : artificial grid gate slag using artificial periodic cleaning, and in conjunction with other garbage disposal progressed. UASB anaerobic tower, two settling tank sludge into sludge pond, concentrated filtration dehydration, dry sludge progressed. Dealing mainly with the full use of existing structures pools, such as the regulation of tanks, sludge tanks, intermediate pools, additional biological oxidation pond Shen two pools, which mainly deals with the structure to take the floor-half. Major processing equipment and room-to take the floor and make a building on the ground decorative landscaping, to the park and building style. Blower through the noise gate, slag and sludge dewatering progressed, and other measures to eliminate secondary pollution, The entire operation will not affect the existing environment, which greatly improved the water quality. The station design consists of sewage treatment and sludge treatment and disposal of two parts. In sewage treatment, according to water, water quality changes, combined sewage own unique circumstances, mature technology, economic rationality, Operation flexible, easy management, stability of the treatment program. In the sludge treatment and disposal, sewage treatment sludge from the process, there should be stability, prevention of environmental pollution secondary; and proper consideration of the final disposal of sludge. Sewage treatment technologies are summarized below : 1. Trash wastewater facilities (the pharmaceutical wastewater) contains all kinds of floating material, need to be installed grid interception. To prevent follow-up to plug the pump or processing equipment; Avoiding the follow-up pool with precipitation increasing number of repair. Artificial grid with low cost, grid interception gate Jardine artificial cleaned regularly. 2, the regulation of water quality due to emissions of sewage water quality is very uneven, causing water from sewage water, water fluctuations, and Therefore, only large enough capacity to regulate access to biological treatment so that the quality of water stability it must have uniform regulation pool, the balance of quantity and quality, reduce follow-up structures to deal with the impact load. 3, biological treatment of sewage pond after regulation after regulation uniform, using anaerobic biological treatment and aerobic biological treatment of the most economical technology, biological process : through domestication and cultivation advantages of having a microbial groups, Growth in the use of the surrounding environment of nutrients in the water that is contaminated substances metabolism, Degradation of pollutants reached, the purpose of purifying water. Biological Process biological growth by the state, is activated sludge, biofilm. Activated Sludge Process biological bacteria in the form micelles suspended in the water through aeration sewage mixed decomposition of pollutants. Activated Sludge Process according to their mode of operation are : general aeration tanks, oxidation ditch, SBR, anoxic - oxic, A/A/O. mainly used in large-scale sewage treatment plant. SBR addition, the provision required sludge return pump, more equipment, the SBR, Small sewage treatment works are also used, but SBR design loads smaller, 0.1kgBOD5/m3?d generally, the application covers a large area, as Decanter needs greater depth of the pond, Meanwhile more control equipment, once the equipment malfunctions or changes in operating parameters, have to run the whole adjustment process. Meanwhile small sewage treatment using activated sludge process, prone to sludge bulking sludge caused the loss, processing pools of sludge concentration is not assured, thus affecting the result. A design principle, the design of the program to strictly enforce the state environmental protection requirements, Sewage treatment must ensure that the effluent quality indicators discharge standards. 2, a simple, mature, stable and practical, economical and reasonable treatment process to ensure that the effect of treatment, savings and investment, operation and management costs. 3, equipment selection balance between general and advanced, reliable operation, high efficiency, easy management, repair and maintenance amount. affordable. 4, the system flexible, easy management, maintenance simple, as far as possible automation of operation, and reduce labor intensity operation. 5, aesthetic design, rational layout, and existing facilities to consider harmonization. 6, and set up the necessary monitoring instruments, and improve operational control of the degree of automation. 7, taking measures to reduce the impact on the surrounding environment, the reasonable control of noise, odors and proper treatment and disposal of solid waste, prevent secondary pollution. Finally the water should reach the People's Republic of China "effluent discharge standards" (GB8978-1996) 2 standards.
c月野兔
2007-05-23
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The design of the sewage from the main production process rinse water production equipment, workshops ground water irrigation. The wastewater to the high concentration of organic wastewater, sewage biodegradability general. Removal of the contaminated material general to ensure that water quality at the same time, a reasonable balance between economic and operational management of the scientific, and consider wastewater standards. Sewage Treatment Process : UASB anaerobic tower, biological oxidation, precipitation and filtration. Sludge treatment and disposal of used filter Van reductions after progressed. Gate residue and sludge treatment and disposal : artificial grid gate slag using artificial periodic cleaning, and in conjunction with other garbage disposal progressed. UASB anaerobic tower, two settling tank sludge into sludge pond, concentrated filtration dehydration, dry sludge progressed. Dealing mainly with the full use of existing structures pools, such as the regulation of tanks, sludge tanks, intermediate pools, additional biological oxidation pond Shen two pools, which mainly deals with the structure to take the floor-half. Major processing equipment and room-to take the floor and make a building on the ground decorative landscaping, to the park and building style. Blower through the noise gate, slag and sludge dewatering progressed, and other measures to eliminate secondary pollution, The entire operation will not affect the existing environment, which greatly improved the water quality. The station design consists of sewage treatment and sludge treatment and disposal of two parts. In sewage treatment, according to water, water quality changes, combined sewage own unique circumstances, mature technology, economic rationality, Operation flexible, easy management, stability of the treatment program. In the sludge treatment and disposal, sewage treatment sludge from the process, there should be stability, prevention of environmental pollution secondary; and proper consideration of the final disposal of sludge. Sewage treatment technologies are summarized below : 1. Trash wastewater facilities (the pharmaceutical wastewater) contains all kinds of floating material, need to be installed grid interception. To prevent follow-up to plug the pump or processing equipment; Avoiding the follow-up pool with precipitation increasing number of repair. Artificial grid with low cost, grid interception gate Jardine artificial cleaned regularly. 2, the regulation of water quality due to emissions of sewage water quality is very uneven, causing water from sewage water, water fluctuations, and Therefore, only large enough capacity to regulate access to biological treatment so that the quality of water stability it must have uniform regulation pool, the balance of quantity and quality, reduce follow-up structures to deal with the impact load. 3, biological treatment of sewage pond after regulation after regulation uniform, using anaerobic biological treatment and aerobic biological treatment of the most economical technology, biological process : through domestication and cultivation advantages of having a microbial groups, Growth in the use of the surrounding environment of nutrients in the water that is contaminated substances metabolism, Degradation of pollutants reached, the purpose of purifying water. Biological Process biological growth by the state, is activated sludge, biofilm. Activated Sludge Process biological bacteria in the form micelles suspended in the water through aeration sewage mixed decomposition of pollutants. Activated Sludge Process according to their mode of operation are : general aeration tanks, oxidation ditch, SBR, anoxic - oxic, A/A/O. mainly used in large-scale sewage treatment plant. SBR addition, the provision required sludge return pump, more equipment, the SBR, Small sewage treatment works are also used, but SBR design loads smaller, 0.1kgBOD5/m3?d generally, the application covers a large area, as Decanter needs greater depth of the pond, Meanwhile more control equipment, once the equipment malfunctions or changes in operating parameters, have to run the whole adjustment process. Meanwhile small sewage treatment using activated sludge process, prone to sludge bulking sludge caused the loss, processing pools of sludge concentration is not assured, thus affecting the result. A design principle, the design of the program to strictly enforce the state environmental protection requirements, Sewage treatment must ensure that the effluent quality indicators discharge standards. 2, a simple, mature, stable and practical, economical and reasonable treatment process to ensure that the effect of treatment, savings and investment, operation and management costs. 3, equipment selection balance between general and advanced, reliable operation, high efficiency, easy management, repair and maintenance amount. affordable. 4, the system flexible, easy management, maintenance simple, as far as possible automation of operation, and reduce labor intensity operation. 5, aesthetic design, rational layout, and existing facilities to consider harmonization. 6, and set up the necessary monitoring instruments, and improve operational control of the degree of automation. 7, taking measures to reduce the impact on the surrounding environment, the reasonable control of noise, odors and proper treatment and disposal of solid waste, prevent secondary pollution. Finally the water should reach the People's Republic of China "effluent discharge standards" (GB8978-1996) 2 standards.
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何生小辈
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