Pre-heating the material and the air,setting flowmeter and alarm fitting in the air pipe of chlorine production,improving the pipes design,adding the chlorine multi-points dosage and cutting off light in reaction,sedimentation and filtration process are put forward in order to improve the yield of chlorine,process stability,security of the chlorine production and decline the degradation rat.

In the process of treating the micro-contaminated yellow river water with powder activated carbon,the efficiency is obviously different from various dosing points.

According to the quality of micro-polluted raw water from Nanjing section of Yangtse River,the suitable kind of powdered activated carbon,dosage and dosing point are determined by jar test to provide a basis for adding powdered activated carbon in waterworks.

At last, multicast QoS routing considerations based on Hopfield NN are proposed.

It can reduce the temperature of the reduction reaction, shorten the reduction periods and eliminate MgCl2 in titanium sponge by using the technology of feeding raw materials from more than one places in the large-scale reactor.