V. 1. spot treatment methods:+ Evaporation method+ Processing methods by the plant: + Soaking method extraction+ Fixed method of pollution by electric current+ passive processing methodV.2. Handle contaminated soil after peeling off from the position+ Phấp by ground processing Method+ Heat method.+ Method mixed with the bitumen asphalt.+ The close method block.+ Peeling method and buried.V. 3. Investigation and analysis of ground:V. 4. Eliminate sources of pollution:V. 5. chemical cleaning rice field:V. 6. investing in the construction systems of gathering, sorting, garbage disposal, ThaiV. 7. Limit the use of chemical fertilizers, plant protection drugs, use of compost V. 8. Propaganda of environmental protection
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