1. chemical process (chemical process) A method of treating wastewater by extraction or chemical contamination in waste water treatment, such as heavy metal. Toxic substances Acid conditions Spotted a high contamination by various chemicals. To provide access to the reaction, which can be useful in isolating, but this method has the disadvantage is when additional chemicals into the water. Cause environmental impact and how it will charge for chemicals is quite high. Therefore, the chemical process is used only when the waste water cannot be treated by physical or biological processes. To cause a sludge (precipitation) relies on the principle of chemical additives to make the reaction caused the sediments fall group. Generally, compounds the hanging. Therefore, the chemical it is prachubuak to make it neutral. Split in this way are costly but highly efficient as well. Therefore, this method cannot be used if the option to exclude physical or biological process.
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