| Summary: | 碩士 === 中國文化大學 === 造紙印刷研究所 === 85 === The chelating agent of the wastewater in de-inking process is
toxic to the activated sludge . To prevent its damage with the
biomass is to decrease the concentration of the chelating agent
, but the most cost efficiency method is to increase the
activity of the activated sludge . In this study , the micro-
biological nutrients is used to improve the treatment efficiency
of the activated sludge processes , and the variation of the
micro-biological nutrients should be identify . We need to know
the variance . e experiment results showed that the micro-
biological nutrient C had a higher biodegradable efficiency .
Thus , the micro-biological nutrient C is used to test the DTPA
toxicity . The effect concentration inhibiting the bacteria's
respiration by 50 % ( EC50 ) is about 6,700 to 7,400 ppm .
Wastewater discharge coming from the pulp and paper industry
contains a multitude of difficult biodegradable components . The
wastewater can be characterized as a highly variable . The main
purpose of this study is to delop the cost efficiency modus of
the treat ability of the organic wastewater by improving the
biodegradability in biological treatment system . This research
also aims to how to increase the treatment efficiency of the
activated sludge , and acclimation the activated sludge using
the different micro-biological nutrients , and discuss the
biodegradation about 520 ppm methanol ( CH3OH ) by using the
micro-biological nutrient C and the micro-biological nutrient A
. The result is using the micro-biological nutrnt C can increase
the maximum biodegradability rate about two times of the micro-
biological nutrient A , and can reduce half of the reaction time
than micro-biological nutrient A .
|
|---|
