In this paper, we drive the concentration of microbial growth in groundwater system. This model is based on system non-linear differential equations. The equations solved by using new homotopy perturbation method. We followed toluene degradation and bacterial measuring oxygen concentrations direct cell counts. And total amount degraded Pseudomonal putida F1 sediment columns increased with risin...

This study examined the effect of permanent swards and bare soil (by repeated herbicide treatment) on soil microbial counts in Australian cool and warm climate vineyards. In both climates, hot water extractable soil C (HWC) in the vine row was increased by 73% after 3 years of sward development. Most of the soil bacterial counts were greatly decreased by the herbicide treatment and principal co...

in order to investigate the effects of cattle manure, benefit fungi of trichoderma species and psudomunas spp. bacteria on seedling emergence parameters, growth and yield of wheat (triticum aestivum l.) a pot experiment was carried out in factorial (23) arrangement based on a randomized complete design with three replications. the treatments were three levels of cattle manure (10, 20 and 30 t.h...

Heterotrophlc production rates of nattve manna planktomc bacteria were esbmated by Increases or direct cell counts in 3 pm-filtered seawater and also via mcotporation of tritiated thymldine tnto DNA Results indicated that about 25 percent of pnmaq production IS consumed by bacteria. suggesbnc they are a mafor component of manne food webs rhe SC/” indicates that this paper has been cttec in more...

Nutrient addition has been proved to be an effective strategy to enhance oil biodegradation in marine shorelines. To determine the optimal range of nutrient concentrations in the bioremediation of oil-polluted beaches, nitrate was added to the simulated shoreline models in the initial concentration of 1, 5 and 10 mg/L. Whenever the NO3-N concentration declined to 70% of its original value, addi...

Five hundred urine samples were tested for cells and bacteria by using a commercial dipstick, a catalase screening device, standard culturing, and chamber counts. The sensitivities of the catalase test were 83% for all samples and 97.6% for specimens containing significant numbers of leukocytes and bacteria. The catalase screening test is simple to perform and should prove useful for the detect...

The prokaryotic community composition of activated sludge from a seawater-processing wastewater treatment plant (Almeria, Spain) was investigated by using the rRNA approach, combining different molecular techniques such as denaturing gradient gel electrophoresis (DGGE), clone libraries and in situ hybridization (FISH and CARD-FISH). Most of the sequences retrieved in the DGGE and the clone libr...

The main objectives of the experiment were: 1) to compare bacterial populations of mastitis-causing organisms on the teats of lactating dairy cattle housed on sand and sawdust bedding and, 2) to examine the relationship between bacterial counts present in the 2 bedding types with those on teat ends. Sixteen lactating Holstein cows were housed on either sand or sawdust-bedded free stalls using a...

An experiment was conducted to compare the whole carcass rinse method (WCR) versus scraping the breast skin or back skin for enumeration of total coliforms and E. coli. In each of two replicate trials, four pre-chill broiler carcasses were collected from two different commercial processing plants. WCR was conducted on each carcass using 400 mL 1% peptone and 1 min of shaking. After the WCR, a b...