The document suggests applying the concept of separating grey water and black water in Egypt, starting with new communities and rural areas. Separating grey and black water could help sustain good wastewater management and minimize treatment costs. The document recommends applying this concept in university campuses by reusing grey water for irrigation, which could reduce drinking water consumption. It also suggests applying the concept in tourist resorts and villages. Finally, the document proposes using ecological drains to treat grey water in rural areas and increase septic tank efficiency for black water, providing a sustainable low-cost treatment option for rural sanitation.

1. SUGGESTIONS FOR APPLYING THE CONCEPT OF SEPARATING GREY
AND BLACK WATER IN EGYPT.
Dr. Helaley Abdel Hady Helaley(1)
Dr. Samaa Maher Zaki Abdel Aziz (2)
(1) Chief of Industrial Drainage, Sludge and Reuse Device; Alexandria Sanitary
Drainage Company.
(2) Manager of Industrial Wastewater Research Department, Alexandria Sanitary
Drainage Company.
KEYWORDS: Grey water – black water – separation – rural areas –
new cities
ABSTRACT
Application of black and grey water separation is one of the effective tools to sustain
good wastewater management system. The main obstacles of applying this
concept in Egypt are its difficulty to be applied in already existing
communities. Thus, starting to apply in the new communities and areas
were in situ sanitation is applied. This will lead to minimize the
quantities of wastewater resulting from these communities and the
clean water consumption which will lead to reducing costs of
treatment and disposal.
Applying the concept of separating Grey water from black water in certain
communities as an applied demonstration model as in the campus universities
through reusing the grey water in irrigating all green areas, as well
as act as an education model and applying the same model in some
specific tourist resorts and villages. This will reduce drinking
water consumption in all institutional buildings and touristic areas,
especially in the new constructed touristic villages.
Applying the concept of separating grey and black water in suitable rural communities
and reuse the grey water for irrigation will improve the recent sanitation level in
effective cost manner as a low cost technology.
Also, using the ecological component of drains in rural areas to treat
grey water from housing areas in order to increase the efficiency of
septic tanks to receive and treat black water as a sustainable low
cost treatment technology in poor rural areas. This will reduce
drinking water consumption in all rural areas. Thus, this will solve the
problem of sanitation in rural areas especially in scattered housing units.