Industrial Sludge Treatment With Application of the GACS Method of Zeologic S.A.

General Information
Sludge produced by Industrial applications can be separated into two categories. This separation concerns food industries mainly (Diary industry, Olive industry etc.), produce organic based sludge, while other industrial applications (Anodizing, or powder coating plants, petroleum industry etc), produce inorganic based sludge.
Organic based sludge after treatment can be disposed with safety to the environment as high quality soil improver, while inorganic based sludge after treatment can be disposed to the environment as an inert material. In any case sludge must be treated and be characterized as inert, in order to fulfill the specifications set out by the applicable legislation.
The GACS Solution (Geochemical Active Clay Sediment)
The Geochemical Method GACS consists an innovative solution on an international level on the subject of treatment and disposal of solid and liquid waste approved in the national legislation for treating sludge produced from industrial activities.
The key characteristic of the Geochemical Method GACS is the usage of geopolymer materials, which have the ability to adapt on the characteristics and particularity of any type of waste. Under this manner, process optimization and performance maximization are achieved.
The combined use of high quality natural materials and few chemical substances in suitable proportions, makes feasible the sludge’s pollutant load to be captured in the mass of the geopolymer materials, resulting in the production of a final product in solid form upon completion of treatment process, which is stabilized and inactivated and which can be disposed of as soil improvers or as an inert material meeting the requirements of the applicable legislation.
Benefits of the GACS Method, on treatment of urban wastewater against the conventional existing methods can be summarized in the following:
Financial Benefits:
  • Competitive investment cost
  • Significantly reduced installation space
  • Reduced operational cost
  • Reduced maintenance cost
  • Reduced operational time

Environmental Benefits:
  • Heavy metals removal even on high concentrations
  • Elimination of pathogen microorganisms
  • Achievement of producing a neutralized sludge which can be used as soil fertilizer or as an inert material
  • Use of natural materials
  • Elimination of odors