SEMUR EN AUXOIS, France: Skid–Elimination of turbidity, organic matter, pesticides, metals, algae, oxidation of manganese and microbiological retention
The plant built in 1980 using a traditional process had to be renovated in 2002.
The Ultrafiltration by membranes combined with the Cristal® process (addition of powdered activated carbon) was chosen for this upgrade. In total, this drinking water production station is equipped with 3 skids 18 module.
In the kitchen daily environment,304 stainless steelcorrosion resistance and safety has been completely enough, more advanced 316 (0Cr17Ni12Mo2) stainless steel for chemical, medical and other fields, chemical properties more stable and more corrosion-resistant.
Austenitic 304 steel strength is low, generally used for kitchen containers, while the tool will use relatively hard martensitic stainless steel (420,440), but the martensitic stainless steel rust resistance is worse.
In the past that may cause trouble,...
To meet the forecasted increases in demand for potable water, the new Tai Po Water Treatment Works has been built in Hong Kong. The plant has a production capacity of 1200 Ml/dayThis solution strongly reduced the chlorine demand for the plant compared to the alternative execution with break point chlorinaThe water treatment works takes water from the river Dongjiang in the Guangdong Province north of Hong Kong. The raw water has an average turbidity level of around 11 NTU and contents, among other things, ammonia...
Pilot-scale biofilters treated with real groundwater were established to systemically investigate the interactions between ammonia, iron and manganese removal. When both of ammonia and manganese in influent were about 1 mg/L, they were quickly removed; but when manganese was above 3 mg/L, ammonia removal was affected significantly. When total iron was above 5 mg/L, the oxidization rate of ammonia decreased significantly. In addition, manganese and iron removal were not affected by ammonia, when ammonia was lower...
The water treatment industry consumes large quantities of coagulant and produces huge amounts of slurry. The cost of alum used in water treatment, stringent regulations and negative impacts of sludge disposal are the motive to do integrated research studies on the technical feasibility of aluminum coagulant recovery from sludge using acidification. This work studied the leaching of iron, manganese, and chromium as the most extracted metals with aluminum during sludge acidification; furthermore, these metals have...
On November 22, 2016, the European Commission’s (EC) Scientific Committee on Consumer Safety (SCCS) began a public consultation on its opinion on additional coatings for titanium dioxide (nano form) as an ultraviolet (UV)-filter in dermally applied cosmetic products. The EC asked if SCCS considered safe the use of cetyl phosphate, manganese dioxide, and triethoxycaprylylsilane as coatings for titanium dioxide (nano) used as a UV-filter in dermally-applied cosmetic products. SCCS concluded that the use of...
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