sludge dewatering chemical waste water treatment in netherlands

sludge dewatering chemical waste water treatment in netherlands
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  • Why is sludge dewatering important?
  • Sludge dewatering plays a crucial role in reducing the sludge volume, facilitating transportation, and enhancing energy recovery. However, conventional mechanical dewatering methods often generate high-concentration organic wastewater containing toxic substances and decrease the caloric value of sludge.
  • How many sewage treatment plants are there in the Netherlands?
  • Wastewater treatment coverage in the Netherlands has been almost 100% since 2008, with around 350 sewage treatment plants. In the year 2016, approximately 345 thousand tons of sludge were produced in the country. In the Netherlands, the concept of transforming WWTPs into “Energy and Resources Factories” is being implemented.
  • Why is sludge treatment important in the Dutch water sector?
  • Over the years, the Dutch water sector has been developing innovative sludge treatment techniques and has become a leader in implementing resource recovery. According to largest Dutch sludge treatment company SNB, over 95% of sludge treatment residues were employed as reusable raw materials.
  • Can hydrate-based sludge dewatering be used in simultaneous discharge of clean water?
  • However, conventional mechanical dewatering methods often generate high-concentration organic wastewater containing toxic substances and decrease the caloric value of sludge. To address this challenge, a hydrate-based method was proposed as a solution for both sludge dewatering and simultaneous discharges of clean water.