User:Lavenderinwater

General requirements for drinking water quality (restriction of microorganisms and chemical matters)
According to international environmental health organization’s survey, only 0.8% of world water can be drunk directly. That is to say, most water can not be drunk, the untreated field water components are very complex. Even if the water is clear and transparent, maybe full of potential hazards. Generally speaking, there are many harmful microorganisms, bacteria and viruses; organic compounds, pesticides, industrial solvent, disinfection by-products; other heavy metals, such as lead, arsenic, mercury, chrome, manganese, antimony, uranium; iron rust, odor, bad smell. Therefore, field water after treated is drunk, which can prevent human body from intestines and stomach diseases (dysentery, voting, abdominal colic), as well as cancers.

Bacteria content in drinking water
1. Escherichia coli or heat-resisting coliform shall not be detectable in any 100ml water sample; 2. Total coliform group shall not detectable in any 100ml water sample, if water supply quality is large, multi-time water samples shall be detected, and 95% of test results within any 12 months shall be qualified. In case, escherichia coli or total coliform group detected, there must be investigation; if the water sample re-detected, coliform still survives, there shall have further investigation to identify reasons.

Chemical substances in drinking water affecting human body’s health
Main are inorganic substances, such as copper, once exceeding 2(p), there will be acute gastroenteritis; fluorides whose content shall not exceed 1.5 (when set out national or local standards, local climate conditions, water-use quantity and other ways to ingest fluorine should be taken into account); lead, indicator max. is 0.01, not all feedwater can satisfy the requirements of indicator, every other method reducing the contact of water and lead shall be adopted; nitrite limit values can be divided into short-time and long-time values, they are 3(p) and 0.2(p) respectively, the accumulated ratio of each concentration and its relative indictor value shall be controlled within 1.

Mobile drinking water production requirements
1. Automatic purification system; 2. Small land occupation, low water consumption; 3. Adapt to diverse source water qualities; 4. Stable output, no blocking, easy operation; 5. Good output water quality, conformity to related water quality standards; such as World 6. Water quality can conform to World Health Organization Drinking Standards and other EU standards;

Application scopes
Deserts and remote oil fields and mining exploration; Force practice, combat hospitals, flood-fighting and disaster-relief; Warship boiler makeup water, island caretaking, frontier forces; Oil platform, industrial mines, enterprises and other (temporary) emergency water.

Mobile Drinking Water
Scheme I: Pretreatment---UF---disinfection(potable water) Scheme II: Pretreatment---RO---disinfection(potable water) Scheme III: Pretreatment---double-stage RO---pure water Scheme IV: Pretreatment---double-stage RO---EDI (CDI) (high pure water)