Chemical Waste Pilot Treatment Plant
Description of Chemical Waste Pilot Treatment Plant
The main aim of the treatment process for these wastes is to recover polluting chemical compounds in the form of precipitates, and an aqueous phase containing compounds that are non-polluting or, at worst, of minimal pollutant level.
Precipitates (bases) containing the polluting chemical compounds can then be forwarded to a specialist treatment centre while the aqueous phase containing compounds virtually harmless to the environment can be discharged into the sewers after pH adjustment (between 6 and 6.5).
The Pilot Plant can be used by students for carrying out experiments on a semi-industrial unit and also for treating chemical producted by the laboratory.
The treatment process has a dual benefit since it provides simultaneous reduction in chemical pollution risks and reduction in the quantities of polluted materials forwarded to the specialist treatment centre. As a result, the management cost of chemical wastes is lowered.
The reagents used in the treatment of chemical wastes are soda (sodium carbonate), hydrochloric acid, sodium hydrogen sulphite, iron (II) sulphate and lime.
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