Most restaurants are small operations. Thus, the
initial investment and operating cost for wastewater treatment
must be kept low. The electrocoagulation process, for example,
consumes the aluminum electrodes at 17.7 g/m3
to 106.4 g/m3
,
and the power requirement is approximately 1.5 KW h/m3
(Chen et al., 2000). Thus these make the electrocoagulation
process costly. Although conventional biological treatment
processes have lower operating costs, they require larger land
space, and are poor in treating high O and G concentrations.
Their average O and G removal rate is just 20~30%. It has
been noted the maximum O&G concentration activated sludge
systems can efficiently decompose is 30mg/l
Most restaurants are small operations. Thus, theinitial investment and operating cost for wastewater treatmentmust be kept low. The electrocoagulation process, for example,consumes the aluminum electrodes at 17.7 g/m3 to 106.4 g/m3,and the power requirement is approximately 1.5 KW h/m3(Chen et al., 2000). Thus these make the electrocoagulationprocess costly. Although conventional biological treatmentprocesses have lower operating costs, they require larger landspace, and are poor in treating high O and G concentrations.Their average O and G removal rate is just 20~30%. It hasbeen noted the maximum O&G concentration activated sludgesystems can efficiently decompose is 30mg/l
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