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conditions. In a word, the purification process of surface water and ground water
necessitates enhancing pre-disposal technology and developing effective materials
and technique, and safe and reliable supervision and disinfection technology. Hence
the water supply systems in China‘s urban areas could be well-developed and
fully-fledged.
Environmental molecular sciences, environmental nanometer technology and
environmental nanometer materials such as catalyzer, sorbent, flocculator, filtration
membrane, sense organ, repair agent, etc., have been undergoing rapid
development. We should develop these higher effective materials and explore their
ecological effects when we try to improve the water disposal system.
Central Water Supply: the rational trend of urban water supply system
Water quality in metropolitans can generally match the safety standard. But our
society still has misgivings about water source pollution and distribution safety
guarantee. Coupled with changes of living habits and market operation, there exist
multifold approaches of drinking water supply in recent years. The trend of urban
water supply system is also a much-discussed subject among the academic
community of water supply. People‘s opinions differ and it is hard to find a common
conclusion.
Purified water in communities, special drinking water line in urban areas, family
purger equipment and barrel water are all different forms of water supply based on
water quality difference, which altogether have occupied a large amount of the
market volume in the urban drinking water industry. Although there are criticism of
and questioning about their sanitation, they have been accepted by some circles of
people. Central water supply should of course become the mainstream, but the
change and orientation of graded water supply based on quality will be closely
related to water pollution control and drinking water safety guarantee in China.
Various mineral water, energy water, electrolyte enhanced water, π-Water, etc.
compete against each other with much publicity and advertisement. Their common
objective, however, is to pursue and promote some kind of ―healthy water‖ most
suitable for people. They should be uniformly classified into healthy beverage, fit for
some people with special needs. After all, there are many channels through which
people can get different nutrient substances. A great deal of daily intake should
come from safe drinking water, which cannot be replaced by any health care
beverage. Enhancing and guaranteeing the water quality safety of urban water
supply system is still the fundamental need of most urban dwellers.
Edited By : Wang Yi
Translated By : Xiao Yanli
Source : www.beijingforum.org
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