EcoCycle

Cost Benefit Analysis - Ecocycle Projects

CASE 1: 4 BEDROOM RESIDENCE ON 1/2 ACRE IN KAREN

COST OF ECOCYCLE RECYCLING SOLUTION (1.5m3 per day Sewage Recycling Capacity)

Description Details Cost (Kshs.)
Klaermax equipment 1.5m3 per day Design & Supply,installation & One year warranty 453,512.00
Recycled water discharge pump Procurement & Installation Costs 48,500.00
TOTAL 457,312.00

SAVINGS ON SEWAGE & WATER EXPENSES DUE TO SEWAGE RECYCLING EQUIPMENT

Description Details Monthly Cost (Kshs.) Annual Cost (Kshs.)
Lawn irrigation water 1.5m3 per day to irrigate lawns @Kshs.125/m3 5,625.00 67,500.00
Frequent exhauster costs to empty septic tank Two exhauster truck trips @ kshs.10,000.00 every quarter 6,666.67 26,666.67
TOTAL 12,291.67 94,166.67

MONTHLY RUNNING COSTS ECOCYCLE RECYCLING SOLUTION

Description Monthly Cost (Kshs.)
Running power costs (80watts rating running 10 hours per day @kshs.20 per kwh) 528.00
Chlorine Cartridges for disinfection (One cartridge for three months) 1,200.00
TOTAL 1,728.00

MONTHLY BENEFITS/SAVINGS DUE TO ECOCYCLE RECYCLING SOLUTION

Description Monthly Savings (Kshs.)
Savings on buying irrigation water by reusing recycled water for the non-potable purposes e.g lawn irrigation 5,625.00
Savings on exhauster truck trips costs 6,666.67
TOTAL MONTHLY BENEFITS 12,291.67

Net Monthly Financial savings (benefits)
Monthly savings – Monthly running costs = 12,291.67 – 1,728.00= 10,563.67

PAYBACK PERIOD

In Months = Cost of Ecocycle Recycling system/ Monthly Net Savings (benefits)
= 457,312.00/10,563.67 = 43 Months
In Years; =43/12 = 3.6 years.

CASE 2: 25 x THREE BEDROOM APARTMENTS, KINOO, KIAMBU

COST OF ECOCYCLE RECYCLING SOLUTION (18.75m3 per day Sewage Recycling Capacity)

Description Details Cost (Kshs.)
Klaermax equipment 18.75m3 per day Design & Supply,installation & One year warranty 3,266,069.70
Recycled water discharge pump Procurement & Installation Costs 54,000.00
TOTAL 3,320,069.70

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. 125 per cubic meter 37,500.00 450,000.00
Frequent exhauster costs to empty septic tank Two truck trips @ kshs.10,000.00 every two months 10,000.00 120,000.00
TOTAL 47,500.00 570,000.00

MONTHLY RUNNING COSTS ON ECOCYCLE SEWAGE RECYCLING SOLUTION

Description Monthly Cost (Kshs.)
Running power costs (1.8 Kw rating running 10 hours per day) @kshs.22 per kwh 11,880.00
Chlorine disinfection costs (one every month) 1,800.00
TOTAL 13,680.00

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 37,500.00
Savings on exhauster truck trips costs once every two months 10,000.00
TOTAL MONTHLY BENEFITS 47,500.00

Net Monthly Financial savings (benefits)
Monthly savings – Monthly running costs = 47,500.00 – 13,680.00 = 33,820.00

PAYBACK PERIOD

In Months = Cost of Ecocycle Recycling system/ Monthly Net Savings (benefits)
= 3,320,069.70 /33,820.00 = 98
In Years; = 98/12 = 8 years.

GENERAL CHALLENGES BEFORE RECYCLING
  1. Dried up Lawns during dry weather and water shortage periods
  2. Health, Sanitation & contamination risks from failed soak pits and during floods.
  3. Bad oduors due to sewer spills or overflows & during frequent exhauster truck visits.
  4. Environmental or property degradation.
BENEFITS AFTER RECYCLING
  1. Improved health e.g. reduced risk of diseases when working or playing in an area that has been irrigated with safe treated waste water. Also improved health as vegetables are irrigated with treated water as opposed to raw waste water.
  2. Water recycling can re duce and pre vent pollution.
  3. Reclaimed waste water can provide for recreational activities e.g. parks, gardens, ponds or water fountains.
  4. Increased property or environmental value in the area where recycling is done.
  5. Enhanced water quality in the receiving waters and improved habitat in the downstream watersheds through discharge of treated safe effluent into rivers and natural streams.
  6. Reduced freshwater diversion from sensitive ecosystems e.g. fish. Water users can supplement their demands by using recycled water, which can free considerable amounts of water for the environment and increase flows to vital ecosystems.
  7. Recycled water may be used to create or enhance wetlands and riparian (stream) habitats. For streams that have been impaired or dried from water diversion, water flow can be augmented with recycled water to sustain and improve the aquatic and wild life habitat.