6 Drinking water is obtained by purification of sea water and river water.(a)Desalination is used to convert sea water into drinking water.What is desalination?removal of salt(s) (from sea water)(1)[1(b)River water is often polluted by phosphates and nitrates.(i) Give the source of ...
LONDON, April 3 (Xinhua) -- A process that could help millions of people by turning sea water into drinking water was announced Monday by scientists in Manchester. The wonder material, graphene, is at the heart of the new process. Scientists at the university have developed graphene-based mem...
The present invention relates to the Natural Sea Water when aerated with Natural Air converts this Sea Water into a medicinal drinking water, as the natural gases like Oxygen, Nitrogen and others react with the Natural mineral Salts like Calcium, Potassium, Iodine, Sulphates, Phosphates, ...
The present invention relates to the Natural Sea Water when aerated with Natural Air converts this Sea Water into a medicinal drinking water, as the natural gases like Oxygen, Nitrogen and others react with the Natural mineral Salts like Calcium, Potassium, Iodine, Sulphates, Phosphates, Chlorides...
This machine can change sea water ___ safe drinking water for people in trouble at sea. A. into B. from C. for 相关知识点: 试题来源: 解析 A 【详解】 句意:这台机器可以把海水变成海上遇险人员的安全饮用水。 考查介词辨析。into到里面;from从;for为了。change...into...“把……变成……”,...
A method of treating and activating sea water or polluted water into drinking water comprising the steps of separating and removing impurities from sea water or polluted water containing a great amount of deleterious materials such as chlorine, various kinds of heavy metals, environmental hormones, an...
a.Some ships do,however make drinking water from sea water.Whatever the source,the water then must be disinfected again before going to the passengers,and records must be kept to show that the disinfected was up to standards. . 有些船,然而由海水做饮用水。什么必须在去乘客和纪录之前再然后消毒...
An investigation has been made of chemical methods of treating sea water to produce drinking water, for use by air-crews adrift in rubber dinghies on the open sea. The method finally developed consisted in treating sea water with briquettes of a reagent containing silver zeolite, barium hydroxide...
Product name:400M3/Day Mobile Sea Water Desalination RO System;feed water:TDS<35000ppm;Product wter:TDS<500ppm, Meet WHO;Container:20ft, 40ft;Power consumption:Low;Clean power:Optional;Control:PLC Auto;Membranes:First Class Quality;Application:Water desa
百度试题 结果1 题目We can't use sea water for watering plants or drinking(direct/directly). 相关知识点: 试题来源: 解析 directly 反馈 收藏