Research Article Open Access

RECYCLING OF GUAR GUM INDUSTRIAL WASTE THROUGH VERMICOMPOSTING

Abstract

In this paper effort has been made to break down the guar gum industrial waste by using composting earthworm species Eudrilus eugeniae Kinb for 150 days. Guar gum industrial waste was mixed with other supplements in different ratios i.e. guar gum industrial waste + cow dung + saw dust ( 40 : 30 : 30) (T1), guar gum industrial waste + cow dung + saw dust ( 60 : 20 : 20) (T2), and guar gum industrial waste + cow dung + saw dust ( 75 : 15 : 10) (T3). In compare to control bedding all the three vermibeds (T1, T2, and T3) showed significant (P<0.001) increase for total nitrogen, phosphorous, and potassium as well as decrease for organic carbon, C: N ratio, and C: P ratio after 150 days of composting by E. eugeniae. In both vermibeds i. e. T1 and T2 the fold increase in total nitrogen, phosphorous, and potassium was greater. After completion of experiments the greater population of E. eugeniae was obtained in T2 vermibed, and it was about 29.9 % and 211.6 % greater than T1 and T2 vermibeds, respectively. Similarly the greater individual biomass was recorded in T2 treatments (15.7 % higher than initial value).

SURENDRA S. SUTHAR

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