Question

Is a solvent recovery system (used to reduce the toxicity of the waste before dumping) required in China or Vietnam?

Note: Case of plant relocation. This is a company that makes the onboard computer components for automobiles. In your production plants, complex hydrocarbon solvents are used to clean the chips and other parts that go into the computer components. Some of the solvents used are carcinogens and must be handled with extreme care.

Answer 1

Solution:

Yes solvent recovery system (used to reduce the toxicity of the waste before dumping) is required in China or Vietnam. Solvent recovery system used to recover solvents from waste material and also reduces volume of waste. Some features of solvent recovery system are-

1. The treatment time is short, thus less affected by heat

2. Running costs are low

3. Labor-saving, safety and hygienic

4. Possible to install equipment in the small space

Names of recovery equipments are-

1. Alcohol recovery equipment - like ethylene glycol, isopropanol

2. Organic acids recovery equipment - phenol

3. Ester recovery equipment - butyl acetate, vinyl acetate

Applications:

1. Recovering cleaning solvent used in the electronic parts and precision machinery industries

2. High concentration and reducing volume of sludge and of wastewater residue

3. Concentration before incineration

4. Recovering cleaning solvent used for paint apparatus

By considering all above factors it is very necessary to recover solvents form waste material. If such waste is not treated and directly dumped it may leads to evolution of toxic gases. Such toxic gases are hazardous to environment.