This research, conducted in two experiments, focused on the effect of co-digestion and combined hydrothermal with milling pretreatment paper waste (PW) chicken manure (CM) biogas production. In first experiment, three reactors labeled B-D contained varying ratios feedstock (4:1, 3:2, 1:1) control A E respectively containing milled (MPW) alone were prepared assessed for second optimum co-digested mixture (reactor D) a ratio 1:1 cumulative volume (633.5mL/gVS) was selected from experiment...

The spread of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli has increased in different environments. This study aimed to evaluate the patterns antibiotic resistance and ESBL genes among E. isolates collected from wastewater recipient surface water South Africa. Fifteen samples containing nine six river were a local treatment plant. detected using standard microbiology methods. Antibiotic susceptibility testing was performed disc diffusion agar. occurrence blaCTX-M, blaSHV...

Abstract The biofertilizer quality of anaerobically codigested agroindustrial residues from brewer’s spent grain and palm oil mill effluent was evaluated after supplementation with different livestock manure in order to validate its use as organic fertilizer. Manure assay performed using animal manure-inoculum demonstrate the influence inoculum-type on nutrient status, plant growth promoting bacteria (PGPB) other attributes resultant digestate. In addition elevated levels (K > P Ca Mg S...

Anaerobic codigestion (AcD) of agroindustrial residues was investigated. Granular sludge from bench-scale bioreactors digesting different manure were acclimated and recycled as microbial seed to demonstrate inoculum-type influence on digestion performance. The biomethane potential (BMP) assay operated for 30 days at 40 ± 2 °C in batch-type laboratory-scale reactors (100 mL). In inoculum amended reactors, showed significant, yet distinctive, biomethanation than monodigestion with a 5-fold...

Laboratory-scale bioreactors were used to co-digest spent coconut copra (SCC) and cow urine (CU) as a co-substrate (SCC + CU) in batch mode under thermophilic condition (45 ± 2°C) order enhance biogas production. The effect of CU pretreatment on the performance indicators (biogas biomethane yields, total solids (TS), volatile (VS) reduction, pH fatty acids (VFAs) concentrations) also examined. This was compared with mono-digestion SCC. experiment performed different mixing ratios reactors...

Anaerobic digestion (AD) of lignocellulosic agro-waste such as coconut husk fibre, pineapple floret and banana stem was studied using standard protocols. A combination physical, chemical biological Pre-treatment performed to facilitate the anaerobic process. The experiment carried out laboratory-scale batch bioreactors maintained at 44.5 ± 2ºC retention time 25 days. Biogas production, pH, total volatile solids concentrations (TS, VS) were also measured. With a general increase in pH after...

Comparative assays were conducted to assess the biogas and biofertilizer production efficiency from anaerobically codigested goat manure (GM) harvest residues: corn stover (CS) rice straw (RS). All digesters operated simultaneously under mesophilic temperature of 40°C notable phosphate solubilizing nitrogen fixing bacterial populations indicated qualitative quality digestates. Codigestion substrates significantly increased yield (p < 0.05) compared monodigestion, highest cumulative 573...

The diversity of fish gut microflora, heavy metals and hydrocarbon concentration two species (Pseudotolithus typus Chrysichthys nigrodigitatus) from Qua Iboe River Estuary was investigated. total heterotrophic bacteria fungi as well utilizing in the guts were abundant ranged 6.87 to 7.57logcfu/g, 5.68 5.80logcfu/g, 5.42 5.48 logcfu/g 2.76 3.40logcfu/g respectively. microbial counts varied among species. Proteus, Bacillus, Staphylococcus, Salmonella, Vibrio, Escherichia, Lactobacillus,...

This study evaluated using 16S rDNA gene-based metagenomics technique the populations of bacteria and archaea in digestate samples from lab-scale anaerobic bioreactors digesting pretreated untreated coconut husk fiber, pineapple floret banana stem. Result biodegradability experiment indicated high microbial activity (biogas slurry), with stem having highest total solids (TS) volatile (VS) removal efficiencies 78.3 % 92.9 respectively. Similarly, all substrates exhibited higher TS VS losses...

Globally, environmental challenges are growing more and significant. Changes in soil have been caused by the years-long discharge careless disposal of palm oil mill effluent (POME). A systematic review explored emerging trends POME treatment applications, with a focus on recent, innovative methods for biological chemical technologies, biotechnological approaches. The highlighted several key findings, including efficiency cost-effectiveness these approaches, their ability to reduce impacts,...

Study’s Excerpt The physicochemical and microbiological properties of leachate from municipal solid waste (MSW) in Ikhueniro, Edo State, Nigeria was investigated. Results revealed significant correlations between bacterial counts the degradation organic matter. There is a need for improved management strategies area. Full Abstract Municipal faces challenges due to rapid urbanization poor practices. Leachate, liquid generated MSW, poses major pollution threat natural resources, including...

Most communities in the oil rich Niger Delta find it difficult to access potable water due constant pollution of their natural sources. The sole aim this study was examine microbiological and physicochemical qualities Estuary at Utaewa ascertain its suitability for use. Standard culture dependent techniques as well metagenomics approach using Next Generation Sequencing (NGS) on Illumina Miseq platform used determine characteristics while standard analytical procedures were employed...

Growth response profile of three species Pseudomonas isolated from pesticide contaminated soils within Uyo, Nigeria was studied using standard microbiological and analytical techniques. The ability the isolates to tolerate varying concentrations commercially available pesticides namely; Decis, DD force Cyperforce assessed over a 96 hour period. Selective enrichment cultures with graded were used assay their growth absorbance determined CO75 digital colorimeter. results showed that differed...

Anaerobic digestion (AD) of poultry and goat manure was performed to estimate the biochemical methane potential (BMP) biosafety digestates using standard analytical microbiological methods. The effects residence time (RT) on BMP, process performance indicators, pathogens indicator bacteria reduction as well heavy metals concentrations were determined. experiment in a semi-batch mode at mesophilic temperature 30 ± 0.2°C 20 L prototype biodigesters over 45 days RT. cumulative biogas yield from...