① 5、科学家利用太空中的废水变成饮用水采用的技术是: A.渗透法 B.反渗透法 C.蒸馏法 D.提纯法
答案:A渗透法
太空水是采用AO膜处理技术对自来水进行终端净化后专的水 .膜处理技术是目前最成属熟的水处理技术,来源于宇航员在飞船上获得饮用水的原理。采用这种方法处理后,细菌、病菌、重金属等肉眼看不到的有害物质都被排除在膜外。
② 安洁尔J1205-ROB8C型反渗透净水器怎么装
如果想咨询安装,建议你通过网络找到豪特住宅科技咨询,让它们安排专业工程师和你沟通,指导你进行安装,以免发生漏水及装错!
③ 看中了沁园405C净水器,但是听说反渗透净水器会产生很多废水,该怎么办
你说的这款产生废水不多。这款有变频节水技术,水渗透率挺高的,在水质好的情况下,2杯净水1杯废水,若水质情况不佳,生产1杯净水也只会产生1杯废水。
④ 美的反渗透净水器MRO121C-4怎么样
您好,要看净水机的好坏,就要看它RO膜的过滤精度是多少,最好是0.0001微米。
⑤ 水处理设备中的C是什么意思
莱特莱德为您解答:何物质都有自己固有的频率,水垢属于无机盐类,一般设备的外壳都是金属材料制作,水垢和金属材料的振荡频率不同。SLGP型电子水处理仪释放的高频振荡波对于附着在金属材料表面的水垢产生共振,即击碎剥离,由表及里,循环进行,从而达到除垢的效果。
水是人类发展不可缺少的自然资源,是人类和一切生物赖以生存的物质基础。当今世界,水资源不足和污染构成的水源危机已成为任何一个国家在政策、经济和技术上所面临的复杂问题和社会经济发展的主要制约因素。
在水资源日益缺乏的情况下,水资源污染的现实又使人们增加了一份忧虑。在中国很多地区,由于各种复杂因素致使不少水体已经严重受到污染,这更加剧了水资源紧缺的矛盾。
工作原理
RO-反渗透预处理工艺主要为活性炭和精滤。渗透是一种自然现象:水通过半透膜,从低溶质浓度一侧到高溶质浓度一侧,直到溶剂化学位达到平衡。平衡时,膜两侧压力差等于渗透压。这就是渗透效应(Osmosis)现象。反渗透是指如果在高浓度的一边加压,便能把以上提及的渗透效应停止并反转,使水份从高浓度迫往低浓度的一边,把水净化。这种现象称为反渗透(逆渗透),这种半透膜称为逆渗透膜。
设备特点
反渗透水处理设备能过滤掉水中的细菌、病毒、重金属、农药、有机物、矿物质和异色异味等,是一种纯水,无需加热即可饮用。它所过滤出的水量的成本很低。生产的纯水品质高、卫生指标理想。
反渗透水处理设备是采用先进的反渗透除盐技术来制备去离子水,是一种纯物理过程的制备技术。反渗透纯水机组具有能长期不间断工作,自动化程度高,操作方便,出水水质长期稳定,无污染物排放,制取纯水成本低廉等优点。反渗透膜技术在国内医药、生物、电子、化工、电厂、污水处理等领域得到了广泛的运用。
⑥ 反渗透法是淡化海水制备饮用水的一种方法,若25°c时用密度为1021千克每立方米的海水提取淡水,应在海水
您可以参考一下相关的膜手册。在含盐量在三万的情况下,我个人认为有4Mpa就可以产淡水,但淡水产出的多少取决于浓水侧所加压力的大小。
⑦ 污水工程-反渗透翻译(2)
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 proced 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 moles 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-proced 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 conctivity 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 proced water is set with high-pressure proof bursting membrane.