Conversion of organic biomedical waste into potential fertilizer using isolated organisms from cow dung for a cleaner environment

Environ Sci Pollut Res Int. 2019 Sep;26(27):27897-27904. doi: 10.1007/s11356-019-05795-7. Epub 2019 Jul 25.

Abstract

Management of organic biomedical waste is a global quandary, and it is becoming difficult to confront day by day. Conversion of organic biomedical waste into fertilizer is of great concern. In the present research, organic biomedical waste samples (blood swabs, dressing swabs, and used cotton) were collected then after cow dung was collected in sterile container and immediately transported to the laboratory and screened for any gastrointestinal infection by using routine microscopy for intestinal parasitic infection, routine bacterial culture, and fecal occult blood for any intestinal bleeding. Then after, the pure culture of organisms and fungus were prepared, and further samples were subjected to degradation for 288 h by using various organisms and fungus. Then after, the specific quantity of biomedical waste was subjected for incineration. The physicochemical parameters of biomedical waste samples were analyzed. Then treated samples were mixed with soil to confirm a role as potential fertilizer. Then after, tomato plantation was done and phytochemical parameters of tomato plant were analyzed. This study states that organic biomedical waste produces a sanitary and stable fertilizer.

Keywords: Biomedical waste; Chemical oxygen demand; Dissolved oxygen; Distilled water; Electric conductivity; Neem and tobacco extracts; Total dissolved solids.

MeSH terms

  • Animals
  • Biodegradation, Environmental
  • Cattle
  • Feces
  • Female
  • Fertilizers*
  • Incineration
  • Medical Waste Disposal / methods*
  • Soil
  • Solanum lycopersicum

Substances

  • Fertilizers
  • Medical Waste Disposal
  • Soil