Enteric bacteria have been examined for their ability to transfer antibiotic resistance in a wastewater treatment plant. Resistant Salmonella enteritidis, Proteus mirabilis, and Escherichia coli were isolated from clinical specimens and primary sewage effluent. Resistance to ampicillin, chloramphenicol, streptomycin, sulfadiazine, and tetracycline was demonstrated by spread plate and tube dilut...

he 23 US. Army installations engaged in plating employ a variety of techniques to treat wastewater. While some sites have implemented recovery and T reuse, a majority still find it advantageous to precipitate the metals and discharge the wastewater. Sludge is collected in clarifiers, treated by gravity thickening, then dewatered in pressure or vacuum filters, lagoons or drying beds. The dewater...

In this article a magnetic carbon (MEHLC) has been synthesised from Euphorbia hirta leaf (EHL) extract to investigate the adsorption capacity of lead(II) ions aqueous solutions and industrial wastewater. The prepared is compared with raw material under batch process such as contact time, pH, adsorbent dose temperature. adsorbents are characterized by FT-IR, SEM EDX studies. maximum removal obta...

• Etching terminal wastewater is efficiently treated in MECs of different scales. performance scales almost with the reactor volume. Electrode potentials scaled-up (40 L) are resilient to strength. Switch from low high strengths alters microbial community composition. The treatment actual and etching (ETW) plating electronic industry meeting national discharge standards demonstrated laboratory ...

The development of a comprehensive approach to preventing the pollution natural objects is necessary due high requirements environmental legislation for discharge industrial wastewater. Adsorbents are used in various industries extract heavy metals from In this study possibility using saponite clay as raw material production sorbent extraction copper ions Cu2+ wastewater considered, recipe and ...

Presented in this paper is a graphical technique for freshwater and wastewater minimisation in completely batch operations. Water minimisation is achieved through the exploitation of inter- and intra-process water reuse and recycle opportunities. In the context of this paper, a completely batch operation is one in which water reuse or recycle can only be effected either at the start or the end ...