Biodegradation of Waste Drilling Mud Using Spent Mushroom Substrate
Journal Title: Journal of Applied Life Sciences International - Year 2017, Vol 14, Issue 2
Abstract
Biodegradation of waste drilling muds (WDM) was carried out with the aim to investigate the efficacy and applicability of spent mushroom substrate (SMS) for enhanced bioremediation of impacted mangrove swamp. Microcosm study was carried over a 60-day period. Microbial population dynamics of waste drilling muds utilizing bacteria/fungi in the mangrove soil sediment (MSS) undergoing bioremediation was investigated. The experiment was done in four Set-ups labelled A to D: Set-up A (WDM + MSS); Set-up B (WDM+ Sterile MSS) as control; Set-up C (WDM+ MSS + Fresh SMS) and Set-up D (WDM+ MSS + Composted SMS). Physicochemical and microbiological parameters were monitored from baseline to the 60th day, following 20 days intervals. Results obtained show that the drilling muds utilizing bacterial count ranged from 0.4X104─2.5X104 cfu/g, while drilling muds utilizing fungal count ranged from 0.2X103 ─1.5X103 cfu/g. The isolated drilling muds utilizing bacteria belong to the genera Bacillus, Corynebacterium, Citrobacter, Klebsiella, Alcaligenes, Micrococcus and Pseudomonas, and the drilling muds utilizing fungi belong to the genera Candida, Cryptococcus, Rhodotorula, Saccharomyces, Trichosporium, Geotrichum, Aspergillus, Penicillium, Mucor, Fusarium, Cladosporium, Cephalosorium, Monosporium, Neurospora, Rhizopus and Microsporium. The values of the pH in Set-ups were within the neutral to slightly alkaline pH range during the study period. The concentrations of nitrate, phosphate, sulphate, potassium and total organic carbon (TOC) of the Set-ups with fresh and composted SMS (treatment Set-ups) decreased significantly during the study period. The concentrations of heavy metals (Fe, Cu, Zn, Ni and Pb) in the SMS amended Set-ups also showed significant reductions. The percentage of total petroleum hydrocarbon (TPH) biodegraded was greater in Set-up D containing composted SMS (71.48%) than in Set-up C containing fresh SMS (67.93%), followed by Set-up A (22.69%)and the least was the control Set-up B with 8.36%. This study showed that both fresh and composted spent mushroom substrates are effective in the biodegradation of waste drilling muds contaminated Niger Delta mangrove soil sediment.
Authors and Affiliations
H. O. Stanley, P. M. Tari-Ukuta
Keywords
Related Articles
- EP ID EP317993
- DOI 10.9734/JALSI/2017/35991
- Views 97
- Downloads 0
Assessment of Heavy Metals in Surface Water and Bottom Sediment of Ekpan Creek, Effurun,Delta State, Nigeria
The accumulation of heavy metals in water and sediment of Ekpan Creek has increased significantly from previously reported concentrations. The present study was designed to assess the levels of heavy metals in surface wa...
Impact of Intercropping Egyptian Clover (Trifolium alexandrinum var Fahel) with Wheat on Water Use Efficiency of Irrigation
Three field experiments were conducted at the Experimental Farm of Shandaweel Agricultural Research Station, Agric. Res. Center, Sohag Governorate during in the two growing seasons of 2014/15 and 2015/16 to study the wat...
Substrate-inoculum Ratio Optimization upon the Biogas Production from Peels of Eggplant and Cassava by Biomethanization
In this work we have highlighted the importance of substrate-inoculum ratio on the biogas (biomethane) production when using peels of eggplant and that of cassava by biomethanization method. The study has been designed a...
In vivo Antiplasmodial Activity of Ethanolic Leaf Extract of Tithonia diversifolia (Hemsl.) A. Gray against Plasmodium berghei Nk65 in Infected Swiss Albino Mice
Antiplasmodial activity of the ethanolic leaf extract of Tithonia diversifolia was studied in Swiss albino mice infected with Plasmodium berghei (NK65). The study was carried out at the Department of Microbiology, Federa...
Nutritional and Sensory Analysis of Milk Processed from Seeds of Sweet Pea (Cyperus esculentus L.) Consumed in Côte d’Ivoire
Aims: To determine the nutritional and sensory parameters of milk processed from sweet pea seeds consumed in Côte d'Ivoire. Study Design: Sweet pea seeds samples gathered from communal markets in Abidjan district were us...