SANBOS COMPACT

Layout

Process

The SANBOS Compact plants operate with sequentially loaded batches. All of the purification steps, including the post-purification, are carried out in one and the same bioreactor. The buffer container serves to balance fluctuating intake volumes and to load the bioreactors evenly.

Features

Installation situation

The SANBOS Compact can be installed above or below ground and covered if necessary.

Inflow situation

Waste water is routinely fed to the waste water treatment plant via a penstock pipe. An inductive flow meter registers the inflow volume. A sieving plant removes impurities and protects the downstream units from damage. The compact sieving machine combines the process steps of sieving, washing, water removal, compacting and transportation. The material that has been sieved off can be automatically transported into a storage container on site and stored without much smell. The weight reduction is up to 50% and the dewatering performance is up to 25% dry matter substance. Where there are greater inflow rates, a sand catch with a sand trap can be installed as an option.

Storage tank

The storage tank serves as buffer storage and balances fluctuating hydraulic loads. The waste water is circulated continuously with a submersible stirrer. The SBR reactors are loaded by submersible pumps. A manual hoist (crane) is supplied to raise and lower the equipment. Each unit has a holder to insert the hoist. A measuring device monitors the fill level in the storage tank.

Reactor

All of the biochemical decomposition processes take place in the SBR reactor. The standard combination aeration consists of a surface aerator with an integrated mixer.
Major process advantages of combination aeration are:

•    Aeration and circulation in one unit
•    Perfect conditions for (de)nitrification
•    Constantly high oxygen feed over the whole lifetime
•    Highly efficient even under harsh operating conditions
•    Low-maintenance, robust and chemically resistant as it is made completely out of stainless steel
•    Extremely robust drive for harsh conditions
•    No need to regularly replace aerator membranes.

Alternatively the fine-bubble aeration system SANBOS FAS can be used. SANBOS uses only power-saving and low-noise blowers to generate compressed air.

The decanter ensures the extensive, turbulence-free extraction of clean water. The decanter has the following advantages:

•    No floating sludge entrained
•    High hydraulic extraction performance
•    High reliability
•    Maintenance-free components below the water surface
•    Power-free extraction (with no winch or articulated steering  which might be susceptible to breakdown)
•    Volumes can be controlled by an electro-valve in the discharge shaft.
 

Sludge treatment

The dimensions of the sludge store are in line with requirements. As part of the maintenance, it is decided when the sludge will be removed. With a SANBOS sludge dewatering plant (optional), the sludge is dewatered and compacted. The reduced sludge volume saves transport and landfill capacity.