Effect of organic waste compost and microbial activity on the growth of maize in the utisoils in Port Harcourt, Nigeria

2012 ◽  
Vol 11 (62) ◽  
Author(s):  
David N. Ogbonna
Keyword(s):  
Microbial Activity ◽  
Organic Waste ◽  
Port Harcourt

Exploiting the real wastewater potential for resource recovery –n-caproate production from acid whey

2018 ◽  
Vol 20 (16) ◽  
pp. 3790-3803 ◽  
Author(s):  
Anna Duber ◽  
Lukasz Jaroszynski ◽  
Roman Zagrodnik ◽  
Joanna Chwialkowska ◽  
Wojciech Juzwa ◽  
...  
Keyword(s):  
Microbial Activity ◽  
Organic Waste ◽  
Resource Recovery ◽  
The Real ◽  
Carboxylate Platform ◽  
Real Wastewater ◽  
Acid Whey

A carboxylate platform-based bioprocess now enables the conversion of organic waste into a valuable bioproductviaopen culture fermentation due to a complex microbial activity.

scholarly journals Antibiogram of Listeria and Salmonella Species Isolated from Tilapia Fish (Oreochromis nitolicus) and Snail (Archachatina marginata) Sold in Port Harcourt, Nigeria

2021 ◽  
pp. 46-58
Author(s):  
N. N. Odu ◽  
D. N. Ogbonna ◽  
V. Daminabo
Keyword(s):  
Pathogenic Bacteria ◽  
Organic Waste ◽  
Bacterial Count ◽  
Land Snails ◽  
Aquatic Environments ◽  
Human Origin ◽  
Drug Of Choice ◽  
Food Borne ◽  
Port Harcourt ◽  
African Giant Snail

Land snails are ubiquitous creatures found on farms, forests and domesticated in homes. Bacteriological studies indicate that various potentially pathogenic bacteria inhabit different organs and tissues including the haemolymph of the African giant snail, the presence of pathogenic bacteria in the snails are a health threat to consumers and may cause food borne diseases/ infection. Pollution of aquatic environments with organic waste of animal and human origin may lead to transfer of pathogens to the fishes, thereby making them carriers of the pathogens. In this study antibiogram studies were carried out on the isolates from snail and tilapia fish to determine antibiogram of Listeria monocytogenes and Salmonella species isolated from tilapia fishes and snails sold in Port Harcourt.  One hundred and thirty two (132) samples were obtained from three different markets namely; Creek road, Mile one and Rumuokoro markets over a period of six months. Standard analytical protocols were employed to determine the bacteriological characteristics of the various parts such as intestine, flesh/meat, gills and fluid(snail). Antibiogram of Listeria and Salmonella species were determined using standard methods as recommended by CLSI. Statistical analyses were carried out using ANOVA and All pairs tukey-kramer. Results of Total heterotrophic bacterial count shows that snail samples had the highest number of bacterial count compared to frozen tilapia fishes. Mean Listeria spp. count for frozen tilapia fish ranged from 2.7 ±0.68 x104cfu/g to 2.9 ±0.23 x104cfu/g (flesh), 3.3 ±0.15 x104 to 3.7 ±0.35 x104cfu/g (gill), 3.8 ±0.44 x104 to 4.3 ±0.57 x104 cfu/g (Intestine), across the three markets, Mean Listeria spp. count for snail sample ranged from 0.7 ±0.29 x104 to 1.1 ±0.18 x104cfu/ml (Snail fluid) 1.1 ±0.18 x104 to 1.2 ±0.16 x104cfu/g (meat), 1.6 ±0.44 x104 to 1.9 ±0.57 x104cfu/g (Intestine) Creek road market. Mean total Salmonella count for frozen tilapia fish ranged from 1.0 ±0 x103cfu/g to 1.3 ±0.58 x103 (flesh), 1.0 ± 0 x103 to 1.6 ± 0.58 x103cfu/g (gills), 1.2 ±0.5 x103 cfu/g to 2 .0 ±1.41 x103 cfu/g (Intestine), across the three markets. Mean total Salmonella count for snail ranged from 1.0 ±0.58  x103 to 1.3 ±0 x103cfu/ml (fluid), 1.5 ±1.0  x103 to 1.7 ±0.96 x103cfu/g  (meat), 1.7 ±0.96 x103cfu/g to 3.0 ±1.58 x103cfu/g (Intestine), across the three markets. Results of  antibiogram  revealed that all the Listeria species were 100% susceptible to Levofloxacin, Ofloxacin, Gentamycin, Azithromycin, Erythromycin and Ceftriaxone-sulbactam but 100% resistance to Augmentin, Ciprofloxacin and Cefuxime while Salmonella species were 100%  susceptible to Ofloxacin and Ciprofloxacin and resistance to Cetazidime and Gentamicin, thus, these drugs should be considered the drug of choice for infections caused by these bacteria,

Characterisation of organic matter from anaerobic digestion of organic waste by aerobic microbial activity

2001 ◽  
Vol 78 (3) ◽  
pp. 257-265 ◽  
Author(s):  
Katrin Vorkamp ◽  
Reimer Herrmann ◽  
Thorkild Hvitved-Jacobsen
Keyword(s):  
Organic Matter ◽  
Anaerobic Digestion ◽  
Microbial Activity ◽  
Organic Waste

Removal of nutrients from Organic Liquid Agricultural Waste using filamentous algae.

2020 ◽  
Author(s):  
Gonzalo Flores-Morales ◽  
Mónica Díaz ◽  
Patricia Arancibia-Avila ◽  
Michelle Muñoz-Carrasco ◽  
Pamela Jara-Zapata ◽  
...  
Keyword(s):  
Organic Waste ◽  
Low Cost ◽  
Organic Liquid ◽  
Agricultural Waste ◽  
Filamentous Algae ◽  
Tertiary Treatment ◽  
Nutrient Reduction ◽  
Algae Removal ◽  
Algae Growth ◽  
Waste Effluents

Abstract A feasibility analysis of tertiary treatment for Organic Liquid Agricultural Waste is presented using filamentous algae belonging to the genus Cladophora sp. as an alternative to chemical tertiary treatment. The main advantages of tertiary treatments that use biological systems are the low cost investment and the minimal dependence on environmental variables. In this work we demonstrate that filamentous algae reduces the nutrient load of nitrate (circa 75%) and phosphate (circa 86%) from the organic waste effluents coming from dairy farms after nine days of culture, with the added advantage being that after the treatment period, algae removal can be achieved by simple procedures. Currently, the organic wastewater is discarded into fields and local streams. However, the algae can acquire value as a by-product since it has various uses as compost, cellulose, and biogas. A disadvantage of this system is that clean water must be used to achieve enough water transparency to allow algae growth. Even so, the nutrient reduction system of the organic effluents proposed is friendly to the ecosystem, compared to tertiary treatments that use chemicals to precipitate and collect nutrients such as nitrates and phosphates.

Highly-efficient Anaerobic Digestion of Refractory Organic Waste Using Subcritical Water Hydrolysis as Pretreatment Process

2012 ◽  
Vol 48 (1) ◽  
pp. 23-27
Author(s):  
TOMONAO MIYASHIRO ◽  
QINGHONG WANG ◽  
YINGNAN YANG ◽  
KAZUYA SHIMIZU ◽  
NORIO SUGIURA ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Organic Waste ◽  
Subcritical Water ◽  
Highly Efficient ◽  
Water Hydrolysis ◽  
Subcritical Water Hydrolysis
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