Novel biological solution for MSW leachate treatment; odour reduction; COD/BOD reduction

1. EKO GEA Technical Bulletin
Biological Leachate Treatment Plant
EKO-GEA’s leachate plant provides a simple, economical biological solution to MSW leachate treatment.
• Produces effluent which meets EU discharge requirements for COD, BOD, and TSS (no additional WwT required!)
Bio-dynamics at Work • Requires no power (gravity , hydraulically fed – dependant on site gradient and preferences)
• Employs novel technologies for filtration, biological nutrient/nitrate/phosphate reduction, and odour elimination
• Provides a low-cost, innovative, GREEN solution to leachate treatment
EKO GEA Economizes :
• Dramatically lowers leachate treatment costs • Eliminates fees to wastewater treatment works
• Eliminates transport with on-site, odour-free plant • Reduced energy usage – no aeration or O2 required
Additive dosage pump
Methane pipe 40 ml / m³ of leachate
Leachate Treatment Plant
Balancing Tank
2 Leachate inflow
3
1
Description
3 horizontal cylindrical GRP tanks w/ small balancing tank to control hydraulic flow
Retention time ≈ 4-5 hours
Ul. M. Grevenbroich 13
1 - Anaerobic Digestion (AD) Tank – sedimentation + hydrolysis 3000 Celje Slovenia
2 - AD Bio-filter with tuff – Anaerobic digestion + filtration + ion-exchange
3 - Effluent Tank - water storage only – safe for release into drains or waterways

2. How it works: Anaerobic Digestion + Filtration + Ion-exchange
Anaerobic Digestion – AD Enhanced Filtration Biological Ion-exchange
EKO GEA’s superior bacterial culture media Tuff bio-media is utilised in the bio-filter and EKO GEA’s system provides 2 separate ion-
additive feeds and protects bacteria in a offers the following attributes: exchange mechanisms, via the ion-exchange
unique manner, creating efficient biological • Physical filtration capacity which exceeds that capacities of both the bio-active additive and
nutrient reduction, reducing sludge quantities of activated charcoal or other filtration media the tuff bio-media.
by 70% over other WwT technologies. • Exponential surface area increases for
anaerobic bacterial culture growth Both are negatively charged and "offer"
Metabolic decomposition is stimulated via this • Ion-exchange capacity for reduction of negative ions to cation (positively-charged)
bio-active additive, and decomposition phosphorous, nitrate, and heavy metals elements in the water (phosphates, nitrates,
efficiencies are dramatically increased whilst ammonia, hydrogen sulphide…). This ion-
EKO GEA tuff is volcanic, natural stone which
being stabilised by the protective qualities of exchange capacity also results in our
is chemically & biologically inert. It is 97%
the additive, even in the presence of hostile product’s ability to block metals and
silica and is especially porous, lightweight, and
leachate toxins. eliminate odours.
robust. Due to its vulcanisation, it does not
compress and acts to prevent clogging. Most
EKO GEA’s additive is currently being employed EKO GEA is at the forefront of waste
importantly, it “shelters” bacteria and allows
as a biological WwT in 90% of the conventional treatment technology via the biological ion-
for exponential increases in numbers of
WwTPs in the Republic of Slovenia and has exchange capacities of our products.
“workers”.
been endorsed by the The Institute for Water
of the Republic of Slovenia (IzVRS)
EKO GEA helps
Results: biology
EKO GEA’s MSW leachate treatment plant will meet the following effluent parameters: do the work
COD BOD TSS Total P Total N
< 25 mg/l <30 mg/l <30 mg/l <2mg/l <15 mg/l
Advantages:
 Optional placement of the leachate treatment plant onsite within the MSW landfill property - effluent will be safe for release into drain
water system or waterways, eliminating the need for piping or transporting leachate from landfill to WwT plants.
 Treatment provides full leachate treatment, not simply “pre-treatment” Low cost + Small footprint + Odour-free + GREEN
EKO GEA d.o.o. Ul. M. Grevenbroich 13, 3000 Celje SLOVENIA • Slovenia Corporate Tax Code: SI 831 31 833 • www.ekogea.com
Tel. + 386 3491 07 60 • Email: info@ekogea.com • For English: Tel: UK +44 208 144 0102 • US: + 1(217) 731-4744 • Email: mkeenan@ekogea.com