2.1 Water hardness (Hardness), which is divided into two types: temporary hardness. Which is caused by the carbon they contain. And bicarbonate
of calcium And magnesium Dissolved the permanent hardness Caused by having
no substance sulfate. And calcium chloride And magnesium dissolved in water with a hardness greater than 300 mg / L calcium carbonate (mg / I CaCO3) should not be used as drinking water
2.2. The pH of water (pH Value of Water) water is normally used as the acidic - pH is between 6.5 to 8.5, or might be in the range 5-9 and creatures in the water that could have been
dangerous. For drinking water pH should be between 6-8
2.3 dissolved oxygen (Dissolved Oxygen or DO), oxygen
dissolved in water. Are crucial to the livelihoods of many aquatic animals. Natural water is
no good, often DO approximately 5 - 7 ppm if wastewater is DO less than 3 ppm, but water quality standards to fisheries and aquaculture alive must not be less than 2 ppm oxygen is dissolved. little If the water is heated up and DO is reduced
quickly if there is more organic matter in water
2.4 BOD (BOD) to analyze the BOD (Bio-chemical oxygen demand) analysis of the dirty water. In the form of oxygen that
use microorganisms to decompose organic matter. Type biodegradable under
oxygen. From this biochemical process Bacteria get energy for the
growth and division to the next. The final products of oxidized
organic compounds Lahore. To carbon dioxide, water or ammonia, depending on the type of
organic contaminants in the water if the BOD in water indicates that the water is highly contaminated
with organic matter much. On the other hand, if the BOD means that the water was contaminated
with organic least
2.5 COD (COD) The COD (Chemical oxygen demand) is a measure
of the dirty water. In all of the oxygen is used to oxidize
Lovley substances in water to form carbon dioxide and water. Guided by the principle that Almost all organic material under acidic conditions. The amino nitrogen is
converted to nitrate, the COD of the water is always higher than the BOD quantity and
type of organic contaminants in water
2.6. Chemical pest bundle cutting. Pesticides and animal (Pesticides) which is widely used in agriculture include a group of chlorinated hydrocarbons. The slow degradation of DDT residues in the environment for as long as Hebrews eyes chlor ORGANOIODINE phosphate group. There are toxic to insect pests. Then there are also toxic to
warm-blooded animals are very high decay faster than the first
Heavy Metal 2.7 (Heavy Metals) Heavy metals means the element with atomic number in the range
23 -92 in the period 5-7 in the periodic table, and specific gravity ranging from 5 up. the presence
of heavy metals normally when in the form of pure elements are slightly toxic. But if in the
form of some components will be very dangerous. Heavy metals are 68 elements such as lead, mercury, cadmium, zinc, copper, nickel, chromium, iron, manganese, cobalt, arsenic or heavy metals that have the most environmentally are mercury, lead, cadmium, arsenic man received heavy metals into. in the body May be due to the heavy metal
accumulates in the food chain and biological processes. Humans may be consumed
directly into Or experience Or had been indirectly found heavy metal contamination
in the sediments more than the water always. The sediments are mostly negative charge. The heavy metals have a positive charge. Therefore it is better to cling to each other in the water.
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