Management of Hazardous Paper Mill Wastes for Sustainable Agriculture

Sannigrahi, A. K.

doi:10.1007/978-3-319-73645-7_17

Cited by 1 publication

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“…or to cover landfill as impermeable material (Zule et al 2007), which would automatically avoid its detrimental effect on surrounding environment. Though PMW contains a good amount of organic matter, its bio-conversion using epigeic earthworms is not at all easy without some structural and nitrogen amendments due to its very high carbon nitrogen ratio, hardness when dry with less porosity and also due to the presence of different toxic materials (Sannigrahi 2018). Good quality vermicompost preparation depends on three important factors: nature of raw materials, types of vermi-bed preparation and earthworm population.…”

Section: Introductionmentioning

confidence: 99%

Impact of Eisenia fetida populations on bio-conversion of paper mill solid wastes

Mohapatra

Sahoo

Sannigrahi³

2019

Int J Recycl Org Waste Agricult

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Purpose Huge quantity of paper mill wastes are dumped at the outskirt of factory as unwanted materials. Vermicomposting is an eco-friendly technique for beneficial conversion of different biodegradable/organic wastes into useful organic manure utilizing earthworms. Solid wastes generated in paper mills contain appreciable quantity of organic matter. Attempt was made for bio-conversion of Emami paper mill wastes with different numbers of Eisenia fetida (5-30 earthworms/2 kg substrate) for studying its influence on vermi-conversing time and quality of prepared vermicompost. Method Vermicomposting was carried out in trays following heap method and quality of final product was determined following both chemical analysis and bioassay on wheat seedlings. Results Application of more earthworms up to 20 numbers per 2 kg substrate made bio-conversion quicker but further addition of earthworm, however, delayed the process as some earthworms came out of beds and died probably due to competition for food among earthworms inside beds. Ten earthworms per kg paper mill wastes-saw dust-cow dung mixture (1:0.5:0.5 weight wise) was found as optimum earthworm population for preparing quality vermicompost having more major and secondary plant nutrients. Bioassay of this manure on wheat seedlings also confirmed the analytical findings. Conclusion It is confirmed that earthworm population in vermibed played vital role in faster decomposition of paper mill wastes and releasing of more nutrients, which ultimately helped in better growth of wheat seedlings. Successful demonstration of vermicomposting technique will encourage local farmers for beneficial utilization of paper mill wastes in their agriculture.

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Section: Introductionmentioning

confidence: 99%