Environmental review and assessments consultants

Reuse of Treated Wastewater for Irrigation & Thermal Treated Sludge for Agric

Adverse effects to human health and environment safety are the most significant concerns that have to be considered in the re-use of treated wastewater and thermal treated sludge in agriculture and irrigation purposes. These concerns are attributed to the presence of pollutants, such as organic matter, toxic chemicals impact once the wastewater and sludge are released to the environment.

This guideline is prepared consistent with the provisions of local ordee no. 61 of 1991(Protection of the Environment in the Emirate of Dubai), which lay down the foundation of regulating the reuse and land disposal of treated wastewater and sludge within the Emirate of Dubai. Also, this guideline provides minimum standards and common approach for the reuse of treated wastewater and sludge as well as minimum requirements for the design of distribution systems of treated wastewater to ensure reuse and eventual release to the environment will not in any way compromise public health.

  • Waste Water - Liquid waste discharged by domestic residences, commercial properties, industry, and /or agriculture and can encompass a wide range of potential contaminants and concentrations.
  • Sludge - Refers to the residual semi-solid material left from industrial wastewater, or sewage treatment processes. It can also refer to the settled suspension obtained from conventional drinking water treatment, and to numerous other industrial process
  • Unrestricted Irrigation - The use of treated wastewater to grow crops that are normally eaten raw
  • Restricted Irrigation - The use of treated wastewater to grow crops that are not eaten raw by humans
  • Field Capacity - Is the amount of soil moisyure or water content held in soil after excess water has drained away and the rate of downward movement has materially decreased, which usually takes place within (1-2) days after a rain or irrigation in pervious soils of uniform structure and texture