Chemical and Microbiological Assessment of Wastewater Discharged Along the Mediterranean Sea

The large discharges of wastewater in different natural receiving environments, particularly the marine environment, have massively contributed to pollution. This study examined physicochemical and microbiological quality discharged along Mediterranean Sea. investigation is one few works carried out by scientists with countries. Wastewater sampling was Egypt, Morocco, Algeria, Tunisia, Italy. Analyses confirmed that treated always better than ones registered as raw wastewater. In addition, seawater appeared be adequate satisfied standard recommended limits vigor all these These results showed treatment process used Italy allowed a higher reduction most tested parameters (COD: 80.44%, BOD5: 58.9%, OM: 70.74%, TOC: 78.4%). bacteriological waters their diversification assessed denaturing gradient gel electrophoresis (DGGE) technique. Firmicutes, Gamma-Proteobacteria, Beta-Proteobacteria 42% DGGE DNA bands, predominately some lineages affiliated cultivable non-cultivable clones Bacteroides (58%), were found. examination antibiotic susceptibility at level 18 strains isolated from various arbitrary water samples isolates exhibited resistance least family, 11 100% against aztreonam. result confirms antibiotic-resistance spreading circulation last decades conditioned extensive non-controlled use antibiotics for human therapy animal feeding.