MOVING BED BIO-REACTOR (MBBR) TECHNOLOGY
Whether for new wastwater treatment plants or for existing system upgrades or retrofits, the MBBR Technology offers highly compact and effective treatment solutions.
Retrofitting an existing AS plant into an MBBR system, often requires changing the aeration system and partitioning of the former AS basin as well as installing biological carriers and screens. This type of upgrade / retrofit solution is somewhat more costly and labor intensive but the resulting increase of the plant`s capacity can easily be several fold.
Upgrading with MBBR Technology as stand-alone units can be performed as both pre- and post-treatment units for roughing or polishing functions on the existing plant. On a very small extra footprint, an existing plant can be upgraded significantly in capacity with minimal increased operational costs and unchanged maintenance/labor requirements.
BENEFITS
• Highly compact upgrade solutions
• Increased operational stability through capacity to absorb sudden peak loadings
• Low energy consumption
• Negligible headloss
• Virtually maintenance free - self-cleaning technology
• Eliminates the need for solids separation and RAS for performance
INTEGRATED FIXED-FILM ACTIVATED SLUDGE (IFAS) TECHNOLOGY
A cost-effective upgrade solution for existing wastewater treatment plants, the IFAS technology combines the operational characteristics of conventional Activated Sludge (AS) plants with fixed-film technology.
In essence, upgrading an AS-WWTP to an IFAS system consists of installing a retention screen (8mm hole size) and adding a certain volume of bio-elements to provide a high surface area within the AS basin. The carriers present a large surface area, that will predominantly be inhabited by autotrophic bacteria that co-exist with the biomass flocs of the AS system.
BENEFITS
• Easy and simple upgrade solution with very little alteration to the existing plant.
• Operational routines and operational costs remain virtually the same.
• BOD oxidation capacity can be increased by up to 100%.
• Nitrification/Denitrification capacity added within the same treatment plant footprint, often able to meet
the most stringent discharge limits on total N and P, provided Anoxic/Aerobic operation is already in place. | |
