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Impurities within the water

Safety is requested even in the field of ions

AQUANEXT'S method of realizing ultimate safety and impurity removal (production of safe, pure water) by utilizing reverse osmosis membranes will have its true value proven not only for solid materials or particulates, but also when it comes to the field of ions, which goes beyond the colloid molecule level.

飲料水に対する分析項目の人体影響と処理方法

Substance

Criteria

Dangers to the human body

Countermeasures
Escherichia coli bacterium Not to be detected Bacteria can cause orally-transmitting digestive system disease Boiling sterilization, chlorine sterilization
Arsenicum 0.01mg
/l or below		 Atrophy of hair or nails, cirrhosis, perceptual disorder Treatment by desalination equipment, not using the water for drinking water, researching the cause and changing the source of water supply
Hexavalent chrome 0.05mg
/l or below		 Severe vomiting and diarrhea, kidney problem
Nitrate-nitrogen or
nitrite-nitrogen		 10mg
/l or below		 When infants (6 months old or younger) drink brine, the infant can develop methemoglobin thrombus or respiratory disturbances Treatment by desalination equipments, changing source of water supply, and using the water for purposes other than drinking water
Manganese 0.05mg
/l or below		 Symptoms of poisoning, mainly neurological symptoms (speech disorder) Water is colored and dishes become stained. (Problem caused by manganese-containing water) Installing manganese removal equipments, changing source of water supply
Chloride 200mg
/l or below		 Although the criteria are set to begin when people taste saltiness, the total amount taken including those taken from food is important rather than the density of the substance contained in water. Use raw water desalination plants for when the chloride is 2000 ppm or below. Use seawater desalination plant for when the chloride is 2000 ppm or higher
Calcium/magnesium
(total hardnesses) 		300mg
/l or below		 When highly-concentrated, a person may develop gastrointestinal problems. When using extremely hard water it is difficult to create bubbles from soap, and has many other impacts upon our daily lives. Not suitable for use as boiler water. Water of adequate hardness (10100 mg/l) can be tasty when used for drinking water. Treatment by water softening plant or desalination plant
pH value
(hydrogen-ion concentration)		 5.8〜8.6 This figure shows whether the water is neutral, alkaline, or acid. It is ideal to have a pH value for drinking water around neutral (pH value 7). Acidic water will make water supply facilities corrode.  

Strong in removing Escherichia coli
O157 and giardia bacteria

Producing high-quality drinking water by removing salinity from raw water is the basic capability. Our equipment removes nearly 100% of the destructive bacteria that would not get eliminated even when disinfected by chlorine such as cryptosporidium bacteria and giardia bacteria, and therefore can be deemed as a highly reliable safety plan.

Removing toxic substances
such as fluorine and arsenic

Reverse osmosis membrane desalination systems are mostly strong in removing toxic substances such as fluorine and arsenic. 90% or more, up to 99% of such heavy metals can be removed from the water.

逆浸透膜装置でこんなものまで除去します

All the ion substances listed below existent in the water will be removed,
and the treated water will become pure and high quality water

NoItem Removal rate(%) NoItem Removal rate(%) NoItemRemoval rate(%)
1Chloride 99.6 14 Mercury 9497 27 Sulfide 9698
2Sodium 99.6 15 Radioactivity 9397 28 Isopropanol 8590
3Calcium 99.8 16 Ammonium 8090 29 Acidum lacticum 9499
4Magnesium 99.8 17 Bromide 9095 30 Glucose 9698
5Potassium 99.4 18 Phosphate 9697 31 Sucrose 9799
6Manganese 99.8 19 Cyanide 8595 32 BOD 9596
7Iron 99.8 20 Silicate 9698 33 ＣＯＤ 9294
8Aluminum 9698 21 Silicic anhydride 8090 34 Trichloroethylene 8397
9Copper 9698 22 Nitrate salt 9095 35 Arsenic 9398
10Nickel 9698 23 Boron 7080 36 Nitrate-nitrogen 9698
11 Cadmium 9397 24 Fluoride 99.6 37 Nitrite-nitrogen 7090
12Silver 9396 25 Chromate 8595 38 Pesticide chemical 9199
13Zinc 9698 26 Lead 9598