Improvement of the degradation of sulfate rich wastewater using sweetmeat waste (SMW) as nutrient supplement

- Sweetmeat waste (SMW) as a nutrient supplement in the SO42− reduction system.
- COD/SO42− ratio of 4 was found suitable for SO42− removal.
- Sulfate reducing and acidogenic bacteria were dominant microbes in the system.
- Microbial diversities were almost remained unaltered at different COD/SO42− ratios.