Comprehensive application method for chromium slag landfill treatment

• Main Author: PEI JUNFENG
• Format: Patent
• Language: Chinese; English
• Published: 01.02.2019
• Subjects: DISPOSAL OF SOLID WASTE; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINED SOIL SOIL; TRANSPORTING

The invention discloses a comprehensive application method for chromium slag landfill treatment. The comprehensive application method is used for sodium sulfide waste slag and chromium slag landfill treatment. According to the comprehensive application method for chromium slag landfill treatment, the reducing process is conducted at room temperature, no additional energy is wasted, a sodium sulfide aqueous solution can quickly react with hexavalent chromium in chromium slag, hexavalent chromium which is slowly released can be adsorbed and fixed by sodium sulfide in sodium sulfide waste slag and residual pulverized coal, a gravel aggregate layer with the thickness of 25-30 cm can be laid on the top of a filling material layer to play a protecting role, gravel aggregates with the certain particle size are laid on the top layer, waste liquid in the chromium slag can not return to the ground surface and can not contaminate a ground surface soil layer due to the effect of the hole diameter,the overburden layer uti