Sewage Recycling ROI for Apartments & Estates

Cost-benefit breakdown for a 20-unit apartment sewage recycling system in Nairobi — installation cost, monthly savings, and payback period.

20 x THREE BEDROOM APARTMENTS, NAIROBI

COST OF ECOCYCLE RECYCLING SOLUTION (15m³ per day Sewage Recycling Capacity)

Description	Details	Cost (Kshs.)
Klaermax equipment 15m³ per day	Design & Supply, installation & One year warranty	4,353,667.13
Recycled water discharge pump	Procurement & Installation Costs	65,000.00
	TOTAL	4,418,667.13

SAVINGS ON SEWAGE & WATER EXPENSES DUE TO SEWAGE RECYCLING EQUIPMENT

Description	Details	Monthly Cost (Kshs.)	Annual Cost (Kshs.)
Lawn irrigation, open spaces cleaning, & car washing water.	10 cubic meters per day at a cost of Kshs. 150 per cubic meter	45,000.00	540,000.00
Frequent exhauster costs to empty septic tank	Two truck trips @ kshs.13,000.00 every two months	13,000.00	156,000.00
	TOTAL	58,000.00	696,000.00

MONTHLY RUNNING COSTS ON ECOCYCLE SEWAGE RECYCLING SOLUTION

Description	Monthly Cost (Kshs.)
Running power costs (0.43 Kw rating running 10 hours per day) @kshs.33 per kwh	4,257.00
Chlorine disinfection costs (one Cartridge every month at a cost of Kshs.5,000)	5,000.00
TOTAL	9,257.00

MONTHLY BENEFITS/SAVINGS DUE TO ECOCYCLE RECYCLING SOLUTION

Description	Monthly Savings (Kshs.)
Cost Savings on irrigation, open space & Car cleaning water by reusing recycled water (18.75m3) daily for these non-potable purposes	45,000.00
Savings on exhauster truck trips costs once every two months	13,000.00
TOTAL MONTHLY BENEFITS	58,000.00

Net
Monthly Financial savings (benefits)
= Monthly savings – Monthly running costs= 58,000.00 -9,257.00= 48,743.00

PAYBACK PERIOD

In Months = Cost of Ecocycle Recycling system/ Monthly
Net Savings (benefits)
=4,353,667.13/48,743.00= 89
In Years; =89/12 = 7.4 years.

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