pretreatment of wastewater using a combined coagulation at malaysia

pretreatment of wastewater using a combined coagulation at malaysia
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  • Why is natural coagulant a promising technology in water and wastewater treatment?
  • The utilization of natural coagulant is a promising technology in water and wastewater treatment due to its environmentally friendly and its reliable treatment performance, which is comparable with that of the chemical coagulant.
  • Which coagulants are used in wastewater treatment?
  • It is known to be useful in protecting the environment and human health . Aluminum and iron-based coagulants have been used in wastewater treatment. However, there are disadvantages connected with their use.
  • What is pretreatment of domestic sewage?
  • Pretreatment is a step set up according to the water quality requirements of the subsequent treatment process before sewage enters the traditional biochemical treatment, and it plays an important role in the sewage treatment process. Nowadays, many scholars have studied the pretreatment methods of domestic sewage.
  • Can coagulation microfiltration aerate direct sewage pre-concentration?
  • Anaerobic biodegradability of concentrate was 56.5%, similar to blackwater. An energy production of 0.0098 kW h/m 3 could be achieved by CCM system. This study proposed an efficient way of direct sewage pre-concentration by a combined coagulation microfiltration (CCM) system and an optimal operational strategy of aeration.