各位看看这英文标题是什么意思啊，标题我都不懂

应该是乳化废水的处理

这是文章，既然是高Wastewater from a whey processing
plant was treated in two on-site pilot
plants, a three-stage activated sludge
plant and an anaerobic reactor, each of
which had the capacity of treathg 230 W
h of wastewater. The activated sludge
treatment was very effective. It reduced
99% of 5d biochemical oxygen demand
of the plant wastewater (from an average
of 1062 to 9 mg/L) and 91% of total
Kjeldahl nitrogen (from 109 to 10 m&)
after a total retention time of 19.8 h. The
intermediate 5d biochemical oxygen de-
mand reductions were 86% after 3.8 h in
the first stage and 97% after another 8 h
in the second stage. The completely
mixed
anaerobic reactor reduced only
biochemical oxygen demand
87% of 5d
after 2 d of retention. However, with an
additional 8 h of activated sludge treat-
ment the total 5d biochemical oxygen
demand was reduced by 99%. Both pilot
plants were operated smoothly in spite of
the considerable fluctuations in pollutant
levels of the plant wastewater.
(Key words: activated sludge, anaerobic
treatment, whey wastewater)
Abbreviation key: BOD5 = 5-d biochemical
oxygen demand, COD = chemical oxygen de-
mand, HRT = hydraulic retention time,
MLVSS = mixed liquor volatile suspended
solids, TOC = total organic carbon, TSS =
total suspended solids, VSS = volatile sus-
pended solids.
INTRODUCTION
Whey is the liquid waste generated from the
process of cheese making. It constitutes 80 to
Received April 9, 1990.
Accepted December 26, 1990. 手就发挥一下吧