Now Diftech Group has diversified into waste water system technology such systems in India as demineralised(DM), Ultra Filteration,(UF), Nano Filteration (NF), Multigrade Filters (MGF), Effulient treatment plant (ETP) & Water Softner with Teritiary treatment plant (TTP)
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RINSE WATER RECOVERY SYSTEM
RWRS performs a separation without a phase change. Thus, the Energy requirement are low.
RWRS system are compact, and space requirement are less than with other desalting system, e.g. distillation.
RWRS equipment is standarlized-pumps, motors, valves, flow meters, pressure gauge, etc. Thus, the learning curve for unskilled labour is short.
Many RWRS system are fully automated and designed to start-up and shutdown automated and designed to start-up and shut down automatically through interlocks. Thus RWRS plants usually require little labour.
Due to their modular design, maintenance is easy. Scheduled maintenance can be performed without shutting down the entire plant.
The modular design also makes expansion on easy option.
In The reverse osmosis process cellophane-like membranes separate purified water form contaminated water RWRS is when a pressure is applied to the concentrated side of the membrane forcing purified water in to the dilute side, the rejected impurities form the concentrated site being washed away in the reject water.
RWRS can Also Act As An Ultra filter Removing particles such as some micro organisms that may be to large to pass though the pores of the membrane.
BRINE RECOVERY SYSTEM
Brine Recovery System is based on the ability of membranes to concentrate the COD and colouring material in the rejected components, while smaller molecules such as sodium chloride, sodium hydroxide and water can easily cross the permeate. Ultra filtration induced a 45% reduction in organic matter in the portion recycled as regenerant, which represents 40% of the total effluent.
Nano Filtration (NF) membranes were used to treat the salt rich fraction of the regeneration effluent operating at high temperature and pH. The NF process recognized to have a potential of 30% reduction in effluent volume and 60% reduction in salt consumption.
Brine regeneration of anionic decolorizing resins is the simplest and easiest practice. Only 5 to 10% of NaCl used for regeneration is really exchanged on the resin, the remaining 90 to 95% being necessary as an excess of regenerant. This explains the high salt recovery obtained by Nanofiltration of spent brine.