A common approach to wastewater pretreatment in the food industry is the utilization of dissolved air flotation @AF) cells. DAF units are common for BOD, TSS, and FOG reduction when wastewater is discharged to a municipal wastewater treatment plant. A growing problem for all DAF systems is that of sludge disposal. In the o p t i o n of a DAF, contaminants are removed in the form of a concentrat...

BACKGROUND In recent years, decreasing annual rainfalls in some countries and population growth have led to a shortage of freshwater resources. Thus, recycled wastewaters has been suggested for agricultural activities. Contamination of wastewaters with pathogens is a major concern for the use of these waters. This study aimed to (i) investigate the occurrence of helminth eggs and protozoan (oo)...

Aerobically activated sludge from a pig slaughterhouse wastewater-treatment plant was mixed with 0.35 or 0.5% (wtlwt) dextrose, with 0.5% (wtlwt) dextrose and 0.05 or 0.2% (vlv) f ormic acid, or with 2.5% (wtlwt) molasses and 0.1% (v/v) formic acid, and was pasteurized at 95°C for 5 min. After cooling to approximately 20°C the sludge was inoculated with l@-lo7 cfu Lactobacillus plantarum/g slud...

The Adenoviridae and Polyomaviridae families comprise a wide diversity of viruses which may be excreted for long periods in feces or urine. In this study, a preliminary analysis of the prevalence in the environment and the potential usefulness as source-tracking tools of human and animal adenoviruses and polyomaviruses has been developed. Molecular assays based on PCR specifically targeting hum...

The growing consumption of poultry meat has spurred the development meat-processing plants and an associated rise in wastewater generation. Anaerobic digestion is one preferred processes for treating such waste. current push towards biogas upgrading out-of-plant use necessitates new, competitive ways heating digesters. One alternative to electromagnetic microwave radiation (EMR). aim study was ...

over the past several years increasing of cellulites in some regions of the country has been reported. during august and september of 2005, 4.48% of total slaughtered broilers were condemned due to cellulitis in masjid soleiman slaughterhouse. four out of 98 slaughtered flocks were infected to cellulitis. the condemnation rates in infected flocks were: flock 1: 1.55%, flock 2: 0.993%, flock 3: ...