Chemical coagulation of combined sewer overflow: Heavy metal removal and treatment optimization
نویسندگان
چکیده
منابع مشابه
Constructed Wetlands for Combined Sewer Overflow Treatment
Combined sewer systems are designed to transport stormwater surface runoff in addition to the dry weather flows up to defined limits. In most European countries, hydraulic loads greater than the design flow of wastewater treatment plants are discharged directly into the receiving water bodies with minimal treatment (screening, sedimentation) or with no treatment at all. One feasible solution to...
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Since the first identified Cryptosporidium outbreaks occurred in the 1980s and the massive 1993 Milwaukee, WI outbreak affected more than 400,000 people, the concern over the public health risks linked to protozoan pathogens Cryptosporidium and Giardia has grown. Cryptosporidium and Giardia, found in streams, rivers, groundwater, and soil, form hardy, disinfection-resistant oocysts and cysts. B...
متن کاملChemical disinfection of combined sewer overflow waters using performic acid or peracetic acids.
We investigated the possibility of applying performic acid (PFA) and peracetic acid (PAA) for disinfection of combined sewer overflow (CSO) in existing CSO management infrastructures. The disinfection power of PFA and PAA towards Escherichia coli (E. coli) and Enterococcus was studied in batch-scale and pre-field experiments. In the batch-scale experiment, 2.5 mg L(-1) PAA removed approximately...
متن کاملModelling of biofilters for ammonium reduction in combined sewer overflow.
Biofiltration has proved to be a useful system to treat combined sewer overflow (CSO). The study presented uses numerical simulation to detect the critical operating conditions of the filter. The multi-component reactive transport module CW2D was used for the simulation study. Single-event simulations of lab-scale-column experiments with varying boundary conditions regarding the throttle outflo...
متن کاملCombined sewer overflow quality and EU Water Framework Directive
The Community strategy against pollution of surface water control policy was set out by the European Water Framework Directive 2000/60/EC which lays down new procedures for the identification of substances and development of control measures. After the decision n° 2455/2001/EC of the European Parliament and of the Council of 20 November 2001 setting out the first list of 33 substances or groups...
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ژورنال
عنوان ژورنال: Water Research
سال: 2008
ISSN: 0043-1354
DOI: 10.1016/j.watres.2007.09.009