污水工程-反渗透翻译(2)

Posted 2023-05-08

c.反渗透装置（膜组）
反渗透是整个脱盐系统的执行机构，其作用是脱除水中的可溶性盐份、胶体、有机物及微生物。系统设置3套反渗透，每套净出力219m3/h，回收率不小于75%，总脱盐率不低于97%（寿命期内）。反渗透膜采用日本东丽公司的TML20-370型抗污染反渗透膜元件， 此型号反渗透膜的长度为40〃，直径8〃，膜面积370平方英尺（34m2），单根膜脱盐率为99.5%。每套反渗透采用一级两段设计，采用62支7米长的压力容器，成41:21排列，每支压力容器内装7根膜，每套反渗透用434支膜，4套反渗透共1736支膜。平均膜通量为14.7LMH，符合超滤产水的反渗透设计导则，并有很大余量。
c.反渗透清洗系统
反渗透运行压力一般在1.3-1.8MPa，在反渗透膜组长期运行后，会受到某些难以冲洗掉的污染，如长期的微量盐份结垢和有机物的积累而造成膜组件性能的下降，运行压力升高，所以必须用化学药品进行清洗，以恢复其正常的除盐能力。在采用超滤作为预处理的情况下，每3个月清洗一次，每次清洗约2-4小时。本系统设置1套清洗装置，由1台不锈钢保安过滤器、2台清洗泵（1用1备）和1个清洗药箱组成。清洗装置采用自动操作。
d.反渗透冲洗系统
反渗透系统设置自动冲洗系统，以反渗透产水为水源对膜元件表面进行冲洗，以防止污染物沉积在膜表面。本系统设置2台冲洗泵（1用1备）和1台冲洗水箱。
e.控制仪表
为了控制、监测反渗透系统正常运行，还配有一系列在线测试仪表，包括电导率表、流量计、压力表、取样装置和高低压保护开关等控制和监测仪表。反渗透操作为全自动，浓水排放流量根据管线上安装的稳流阀来固定，产水设高压保护爆破膜。

c. RO unit (membrane array)
RO unit is the actuator of the whole desalting system, whose role is to remove soluble salts, colloids, organic compounds, and microorganisms in the water. The unit is equipped with three set ROs, each has 219m3/h net output, more than 75% recovery rate, and more than 97% total desalting rate (within the life-term). RO membrane adopts TML20-370 anti-contamination RO membrane element produced by Japan Toray Company [Length: 40〃; Diameter: 8〃; Membrane area: 370 square feet (34 m2); Single membrane desalting rate: 99.5%]. Each set RO adopts design of two-sections per grade (需要自己核实) and 62 seven-meter-long pressure containers lining in 41:21 matrix, each pressure container is internally equipped with seven membranes, thus each RO set needs 434 membranes and a total of 1736 membranes for 4 sets. The mean membrane flux is 14.7LMH being in accordance with super-filtration water RO design guideline and having large margins.

c. RO cleaning unit
RO pressure is generally operating at 1.3-1.8MPa. After long-term running, RO membrane array may be contaminated by some contaminations uneasy to be washed off, for example, long-term accumulation of trace salt scales and some organic compounds can result in declining of the performance of the membrane modules and higher running pressure, and therefore, RO membrane array must be cleaned with some chemicals to recover its normal desalting function. When super-filtration was used as pretreatment, it should be cleaned every 3 months, and every cleaning lasts about 2-4 hours. The unit is equipped with a set of cleaning equipment including a stainless steel safeguard filter, two cleaning pumps (1 in use & 1 for preparation) and a cleaning agent tank. The cleaning unit is operated automatically.

d. RO washing unit
RO system is equipped with automatic washing unit, which washes the membrane element surface with RO-produced water as supply to avoid contamination sediment on the membrane surface. The unit is equipped with two wash pumps (1 in use & 1 for preparation) and a washing tank.

e. Control instrument
Serials of online measuring instruments are equipped to control and monitor the normal running of RO system, including conductivity instrument, flow meter, pressure meter, sampling apparatus, and high-low voltage protecting switch, etc. RO is operated automatically, whose condensed water discharging flow is fixed according to the steady-flow-valve installed in the pipelines, and the produced water is set with high-pressure proof bursting membrane. 参考技术A C. Installation of reverse osmosis (film), reverse osmosis desalination systems is the executing agency. Removal of the role of the water soluble salt, colloidal organic and microorganism. Reverse osmosis system installed three sets of each country 219m3/h net recovery of not less than 75%. Desalination rate of not less than 97% of the total (lifetime). Japan's Toray TML20-370 using reverse osmosis membrane-resistant reverse osmosis membrane elements. This type of reverse osmosis membrane 40 package to return to the length, diameter 8 package to return the membrane area of 370 square feet (34m2). Single membrane desalination rate of 99.5%. Each two-level design using reverse osmosis, seven meters long supported the use of pressure vessels 62, 41:21 into line Each pressure vessel contents Seven films set semi-permeable membrane 434 support, a total of 1,736 support four sets of reverse osmosis membrane. 14.7LMH for the average flux, with the reverse osmosis water production ultrafiltration Design guide, and a significant cushion. C. RO reverse osmosis cleaning system operating pressure in the general 1.3-1.8MPa. After long-term operation of the reverse osmosis membrane Group, will be hard to wash away some of the pollution. If the long-term accumulation of organic matter and trace salt scaling properties of the membrane caused by the decrease in operating pressure increased, Therefore, we must use chemical cleaning to restore its normal capacity of desalination. UF used as a pretreatment in the circumstances, every three months cleaning, washing about every 2-4 hours. The system set up one set of cleaning equipment, stainless steel from Taiwan security filters, 2, cleaning pump (1 up with one) and one cleaning medicine kit components. Use automatic cleaning device. D. RO reverse osmosis system installed automatic irrigation system flushing system reverse osmosis membrane elements for the production of surface water for irrigation to prevent the deposition of pollutants on the membrane surface. 2, the irrigation pump system installed (1 up with one) and 1 flushing cisterns. E. Control instrument for controlling and monitoring the normal operation of the reverse osmosis system, also has a sea-series line test instruments, Table including conductivity, flowmeter, pressure gauge, sampling devices and high-voltage and low-voltage protection switches, control and monitoring instruments. Automatic operation of reverse osmosis, concentrated on the installation of pipelines under water discharge flow to the steady flow valve fixed, high pressure water protection based film production blasting.

声明:这个是我用软件翻译,不是手译的,给你做做参考. 参考技术B c.I am anti- to permeate device(film set)
Anti- permeate is the whole performance organization which take off salt system, its function is to take off in addition to aquatic dissolubility salt, gum body, organic matter and microorganism.The system establishes 3 sets of anti- permeate, each one is clean to lift a hand to the 219 ms 3/h, the recovery rate is no smaller than 75%, always taking off a salt rate to be no lower than 97%.(inside life span period)Anti- permeate TML20-370 type anti- pollution of the film adoption Japanese Dong Li2 company anti- permeate a film component, this model number is anti- to permeate the length of film as 40 〃s, the diameter is 8 〃s, the film area is 370 square feet, the single root film takes off the salt rate as 99.5%.Each anti- permeate to adopt a class two pieces to design, adopt 62 pay the pressure container that 7 meters grow, become 41:21 arrange, pay to pack 7 films inside pressure container each time, each anti- permeate to use 434 films, 4 sets of anti- permeate 1736 total film.Average film flux for 14.7 LMHs, match super filter to produce water of anti- permeate a design to lead, also very big remaining quantity.
c.I am anti- to permeate to clean system
Anti- permeate to circulate pressure generally in the 1.3-1.8 MPas, will be subjected to a some and hard pollution for flushing after I am anti- to permeate a film a senior clerk to expect to circulate, such as the backlog which knot dirt and organic matter of the long-term little salt but result in film module the function descend, circulating pressure to go up, so having to be with the chemicals carrying on cleaning to recover it normal of in addition to salt ability.Be adopting super filter conduct and actions to prepare under processed circumstance, clean every 3 months, clean about 2-4 hours each time.This system establishes 1 set to clean device, is cleaned a pump(1 use 1 have) by 1 set stainless steel public security filter, 2 pedestalses to clean a medicine with 1

参考资料：http://fy.iciba.com/trans.php

参考技术C 不太清楚 参考技术D c(c)-65%b >>d 第5个回答  2007-01-02 Mmmm.........Hard i know how to right , but...............the name of the material..i don't know its name....sorry...

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