A new technology for oil removal from surplus ammonia water and rich liquid;

By using the fact of tar exiscing in surplus ammonia water the SCCP condensation system,the reason of tar existing in surplus ammonia water is analyzed,and the method removing tar is discussed.

The main improvement is to replace the tank of surplus ammonia water into the apparatus of natural sedimentation for separation.

Application of ceramic membranes to the oil removal from the coking residual ammonia water;

Aiming at the residual ammonia water from the coking factory of a steel-iron company,magnesium ammonium phosphate(MAP) has been synthesized by the chemical by-product and the chemical floatation is used for pretreatment.

This article mainly discusses the pretreatment of the residual ammonia water after the coal oven gas washed,and offers one new method of the pretreatment.

Study on treatment of residual ammonia liquor from coking plant using flue gas;

In coking and chemical fertilizer industry using residual ammonia liquor is feasible and have many advantages as little investment, low cost and good effect.

And a new process for boiler flue gas desulfurization by means of coking ammonia water and HPF waste water is proposed as well based on the process calculation.

Calculation of residual head and location of orifice pressure relief about water supply system of indoor hydrant;

Treatments of special problems for the opencut mine are suggested, such as drying up of the aquifer, boundary movement and prediction of residual head.