Cholera in victorian London inspired part of my handkerchief doll for the exhibition. It was so gross back then. It seems like the logical thing to do would be to pay what you need to to make sure sanitation is at its best for one of the most well known cities in the world, especially after the statistics from the conditions of 1858. "One of those options, according to Clean Thames Now and Always, a nonprofit organization that opposes the supersewer, is to create more green spaces in the city that could naturally absorb rainwater instead of pushing it down the sewer. Another is to improve the water quality by injecting oxygen into the river." This is an interesting idea to me. How would putting more oxygen in the Thames actually kill the bacteria living there? Clean Thames Now and Always explains on their website that "The scheme consists of a bubbler system fixed on the riverbed which mitigates oxygen sags[2], supported by real time water quality monitoring so mobile bubbler boats can be deployed to tackle any punctual issue. Booms are installed to contain litter and a fleet of skimmers deals with residues (of which only about 10% is estimated to be sewage-related in the Thames). Since 2005, this solution has been providing in excess of 5mg/l dissolved oxygen, 99.9% of the time in Cardiff[3]." In the report by Chris Binnie (ex independent chair of the Thames Tideway Strategic Study (2000-05), which recommended the Thames Tunnel in 2005 as a solution to the Thames’ CSO issues), the solution is explained further to say that "Fish are considered the most sensitive ecological species and dissolved oxygen standards have been set to minimise fish kill. The current works of the improvements to the sewage treatment works and the Lee tunnel will, when completed soon, go a long way to mitigating the impact. A diffuser system using compressed air might well be able to raise the dissolved oxygen levels in the river to meet the dissolved oxygen standards. Sewage litter can be reduced by constructing a vortex system at the CSOs to pass forward a concentrated flow and spill much less of the floatable matter. Tests elsewhere show 85% to 99% improvement. In addition one could consider using screens, booms and skimmers. These measures would also reduce general litter which makes up about 90% of all litter." These ideas seem like plans for a giant fish tank filter to me. Kinda cool.
Cholera in victorian London inspired part of my handkerchief doll for the exhibition. It was so gross back then. It seems like the logical thing to do would be to pay what you need to to make sure sanitation is at its best for one of the most well known cities in the world, especially after the statistics from the conditions of 1858.
ReplyDelete"One of those options, according to Clean Thames Now and Always, a nonprofit organization that opposes the supersewer, is to create more green spaces in the city that could naturally absorb rainwater instead of pushing it down the sewer. Another is to improve the water quality by injecting oxygen into the river."
This is an interesting idea to me. How would putting more oxygen in the Thames actually kill the bacteria living there?
Clean Thames Now and Always explains on their website that "The scheme consists of a bubbler system fixed on the riverbed which mitigates oxygen sags[2], supported by real time water quality monitoring so mobile bubbler boats can be deployed to tackle any punctual issue. Booms are installed to contain litter and a fleet of skimmers deals with residues (of which only about 10% is estimated to be sewage-related in the Thames). Since 2005, this solution has been providing in excess of 5mg/l dissolved oxygen, 99.9% of the time in Cardiff[3]."
In the report by Chris Binnie (ex independent chair of the Thames Tideway Strategic Study (2000-05), which recommended the Thames Tunnel in 2005 as a solution to the Thames’ CSO issues), the solution is explained further to say that "Fish are considered the most sensitive ecological species and dissolved oxygen standards have been set to minimise fish kill. The current works of the improvements to the sewage treatment works and the Lee tunnel will, when completed soon, go a long way to mitigating the impact. A diffuser system using compressed air might well be able to raise the dissolved oxygen levels in the river to meet the dissolved oxygen standards.
Sewage litter can be reduced by constructing a vortex system at the CSOs to pass forward a concentrated flow and spill much less of the floatable matter. Tests elsewhere show 85% to 99% improvement. In addition one could consider using screens, booms and skimmers. These measures would also reduce general litter which makes up about 90% of all litter."
These ideas seem like plans for a giant fish tank filter to me. Kinda cool.