Test of oilfield wastewater treatment by modified ceramics filtration ball coalescence equipment;

A new kind of ceramic filter media was utilized in the coalescence experiment of oil wastewater disposal.

Carbon-inorganic sorbent was utilized as a new type of coalescence material in comparison with traditional polypropylene, ceramsite and activated carbon.

A 2-D cellular automaton(CA) model is developed to simulate nucleation,growth and coarsening of grains during the solidification of a certain material,as well as the grain coarsening after solidification.

The principles of dissolution precipitation of second phase particles and autenite grain coarsening were studied and the solubility product of NbC in austenite as function of temperature was evaluated.

A directly etching test of austenitic grains wasconducted to show the effects of different V and Nb contents on austeniticgrain coarsening, thus making provision for a rational choice of austenizingtemperature in the rolling process of the microalloyed V--Nb steel.

In order to protect the Yangtze River, Jialing River and Sanxia Reservoir against pollution,compact solid-oil-water separation technology, which is based on hydrocyclone separation, filtration separation, coarsening separation as well as gravitational separation technology, is proposed.

Concerning with the pre-coarsening process often used in calculating the complexity, a fast binary quantification method is proposed which directly takes the sign bits of the complemental code of the original signal minus its mean as the bi-quantified values, thereby enabling the calculation simple and fast.