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Architectural sites suffers from weathering effects such as liquid sedimentation, lampblack or pollution deposit, moss growing or longterm erosion. Displaying their impact on present buildings could help deciders to plan relevant actions for preserving the ...
• Goal The goal of the project was to produce biomolecular fingerprints in order to describe the structure of microbial community which develops during aerobic sludge granulation, initiated in sequencing batch wastewater treatment processes. Four SBR were ...
The removal or breakdown of org. compds. from wastewater is an important and integral part of any industrial chem. process. Described here is the electrochem. treatment (or pretreatment prior to biol. treatment) of industrial wastewater (BASF wastewater) c ...
Aerobic granular sludge technology offer a possibility to design compact wastewater treatment plant based on simultaneous COD, nitrogen and phosphate removal in a sequencing batch reactor.Simultaneous nutriment removal was possible, because of heterotrophi ...
Cast polyurethane thermosets have been modified with randomly oriented exfoliated and intercalated montmorillonite clay usinghyperbranched polymers (HBP) as reactive additives to promote dispersion of the clay platelets. The influence of the clay content o ...
A high mol. wt. water sol. acrylamide based polymer having improved flocculating properties is provided. The polymer is prepd. by a process, in which a small quantity of a chain branching agent such as methylenebisacrylamide is added to the polymn. reactio ...
A high molecular weight water soluble graft copolymer having improved flocculating properties is provided. The backbone chain is a heteropolysaccharide comprising amino groups, in particular chitosan, grafted with one or more monoethylenically unsaturated ...
An estimated 30-50 million people in Bangladesh consume groundwater with arsenic contents far above accepted limits. A better understanding of arsenic redox kinetics and simple water treatment procedures are urgently needed. We have studied thermal and pho ...
A high mol. wt. water sol. acrylamide based polymer having improved flocculating and dewatering properties is provided. The polymer is prepd. by a process in which a small quantity of a chain branching agent is added to the polymn. reaction mixt. continuou ...
(Ecole Polytechnique Federale De Lausanne (Epfl), Switz.).2002
A process for prepg. a water sol. polymer comprises: providing a polymn. reaction mixt. comprising one or more polymerizable ethylenically unsatd. monomers; polymg. the ethylenically unsatd. monomers; and adding to the reaction mixt. during polymn. one or ...
(Ecole Polytechnique Federale De Lausanne (EPFL), Switz.).2002
