1. Malodor around pump houses
Close to pump houses residents often complain about strong, unpleasant smells. Particularly during good weather conditions, an unpleasant, disgusting smell wafts through the front yards and open windows. The compressed air that is blown out of the collection basins’ roof in the pump house is to blame for the smell. Various measures, like carbon filters, initialized by the sanitation authority only led to short-term results. Neither did they change the smell intensity nor did they bring a long-term impact. (For example, the carbon filter enriches itself with H2S relatively fast and needs to be changed frequently. Automatic technical control is hard to implement)
Odour removal with SinoAir© diffusion
With SinoAir© L Diffusion, a reaction tank that is attached to the pump house’s exhaust air is automatically provided with SinoAir© L Diffusion active substance to eliminate odors from the pump house’s exhaust air by catalytic decomposition.
The result is odorless exhaust air and an malodorless life near the pump houses.
Cost comparison SinoAir© vs Sulphuric salts
|Operating costs per year||ca. 30.000 €||ca. 2.600 €|
|metering device (MSR)||3.100 €||1.000 €|
|one-time investment costs||32.000 €||2.500 €|
|Monitoring/ function||Not possible||Telemetry|
|Individual adjustment of odour intensity||Not possible||Remote maintenance|
|Dangerous goods hedge||Yes||Not required|
|Handling: Technician / MA||30 Days functional test||Only Refill ca. 120 days|
|Land acquisition||ca. 50.000 €||Not required|
2. Rotting in open channels caused by H2S oxidation
The open channels and shaft structures in our cities that were built decades ago were designed for the volume of water consumption and throughput at that time. Due to the enormous reduction of the water consumption the forecasted average lifetime of 80-100 years cannot be reached anymore by far. The canalization is no longer flushed properly and the thereto related self-cleansing effect is not effective anymore. As a result, this leads to a sharp increase in H2S concentration and to the disintegration of the underground structures so that already today almost all structures and open channels are in need of rehabilitation (see waste water association’s survey). The consequences are immense investments in temporary solutions as well as investment reserves in the cities and municipalities to maintain the rotting sewage system and to take people’s complaints into account.
H2S degradation with SEV
SinoAir© SEV is, in small dosages, automatically added to the sewage on its way to the treatment plant via a dosing system. Already at the next sample-reading point 1,5km away, a reduction of the H2S concentration from 7-10 ppm to less than 0,5ppm has been proven.
This saves millions of euros that can be invested in other urgent projects.