alum in wastewater treatment alum in wastewater in china

alum in wastewater treatment alum in wastewater in china
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  • What is alum sludge?
  • As aluminium coagulants are the most common metallic coagulants which are used in water and wastewater treatment, alum sludge is a common name for water treatment sludge in many studies. Besides, some studies used other terms such as water treatment residual, alum residual, water treatment solid, waterworks sludge, waterworks residuals.
  • Can ammonium alum crystallization recover aluminum from water purification sludge?
  • In this work, the ammonium alum crystallization method can recover aluminum from water purification sludge and effectively reduce the concentration of ammonium in ammonium-rich wastewater. The authors acknowledge the financial support of National Science Council, Taiwan, R.O.C. for this work ( 102-2622-E-239 -002-CC2 ).
  • What is alum sludge (ALS)?
  • Authors to whom correspondence should be addressed. Alum sludge (AlS) refers to the inevitable by-product generated during the drinking water purification process, where Al-salt is used as a coagulant in the water industry. It has long been treated as “waste”, while landfill is its major final disposal destination.
  • How to generate ammonium alum from water purification plant?
  • In this study, sludge from water purification plant was used as the aluminum source to develop a method to generate ammonium alum, by removing high concentration ammonium in wastewater and recovering aluminum form waster sludge. Ammonium alum crystallization is a nucleation process, which produces primary or secondary nucleuses , .