4. chemical-physical process (process physical-chemical)Is a process that requires aid, rather than the process, this process will be used in the final steps in the wastewater treatment process, as well as other steps in the process are as follows: 4.1 adsorption by charcoal (carbon adsorption) method of coal powder using a substance to absorb carbon. Mix dissolved in wastewater 4.2 battery Exchange this approach relies on the principle of charging for the exchange between the contaminants in waste water. With that package, which includes both prachubuak and negative charge will be transported within the water.
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