As intermittent orbit, the results show that the average COD removal rate was beyond 95% when the concentration of the circulation water was 3000～4000 mg/L around, and discharge of the circulation water was between 100～200 L/h, and the aeration strength was 40～60 L/h, the volumetric load could achieve 10 kg/m 3·d.
The content of SS、COD、oil、NH_3-N in standard discharge water and cleansed effuent can be further lowered by the combination techniques of BAF and three grade filter,and it can reach the index of supplement water in circulation water unit,It has already gained remarkable benefits in economy and society.
Activated carbon was selected as the best bio-filter in the bio-filter system, nitrification sphaericus as the best microbe which could reduce ammonia nitrogen content of the oil refinery sewage from 40mg/l to below 4mg/l at 30℃ in a duration time of 0.83h to meet the water quality demand of circular cooling water.
The effluent water could be used as supplementary circular cooling water, then after further treated by fine filtration and resin adsorption used as boiler water.
Corrosion-electrochemical behavior of tube stills of a 18-10 steel combined with the case component members from plain carbon steels in circulating water of petroleum refineries is investigated.
We present the results from an experimental investigation of the methods of aerodynamic action on the processes of evaporative cooling of circulating water in a cooling tower.
When circulating water was heated by ascending heat flow, gold would be extracted, concentrated and transported from auriferous rocks and then precipitated in the masses during the late tectonic movement.
We describe the water chemistry of circulation heat-transfer systems (cooling and heat-supply networks) at which the pH value of the circulation water lies in the range 7.0-8.3.
In addition, the experiment indicates that this novel chiller is highly suitable for an air conditioning system with a low dehumidification requirement or a system with a large cycle flowrate and an industrial cooling water system.
The level of physical parameters is treated that corresponds to the interaction between molten core droplets and cooling water in the case of severe accident in a nuclear reactor.
It is shown that, among the materials considered, those holding most promise for the development of adsorption systems for cooling water are new composite selective water sorbents, primarily KSKG silicagel modified with calcium chloride.
A description of promising developments of the equipment for the ball-cleaning system of turbine condensers and filters for additional cleaning of cooling water is presented.
In order to promote fertility and productivity, the irrigation of recycled water onto water repellent soil may be an applied technology to be used in some areas of Southern Australia.
Batch equilibrium sorption experiments on Cd, Cr, Cu, Ni, Pb and Zn in their typical proportion in recycled water were conducted in water repellent soil.
The risk assessment for the application of recycled water onto water repellent soil is definitely necessary, especially for the metal cations with relatively weak sorption.
循环水
circulating water 
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