tag:blogger.com,1999:blog-5890720061582192467.post2310993629538977217..comments2024-01-04T14:44:26.490+08:00Comments on Singapore 2B: Sui PianUnknownnoreply@blogger.comBlogger3125tag:blogger.com,1999:blog-5890720061582192467.post-48611981100926467952016-07-21T11:18:57.460+08:002016-07-21T11:18:57.460+08:00Dear El,
Thanks for your reply. I was wondering i...Dear El,<br /><br />Thanks for your reply. I was wondering if I should ask this question on Quora.<br /><br />I had suggested that they can start small by maybe dam up Coney Island or Pulau Ubin first. You will have to pump out the sea water and clean up the seabed and put in reservoir or treated water. I guess it will smell bad and be expensive.<br /><br />I think with more desalination plants here in future the sea water quality will become more salty due to the discharge back into the sea.<br /><br />It would create a greater security concern and need more investment in security.<br /><br />Have a nice day : )<br /><br />AndrewAndrew Leunghttps://www.blogger.com/profile/09675248185221866404noreply@blogger.comtag:blogger.com,1999:blog-5890720061582192467.post-10332518251747987112016-07-21T09:31:04.281+08:002016-07-21T09:31:04.281+08:00Andrew, I can't answer for MND/MEWR so this is...Andrew, I can't answer for MND/MEWR so this is just speculation on my part.<br /><br />On the face of it, your suggestion should be no more different than damming up the mouth of the SG river with the Marina Barrage, to form the Marina Reservoir.<br /><br />So if that can be done, your suggestion should be possible. The technical feat of building dam and barrages should be possible.<br /><br />But why not?<br /><br />We can speculate.<br /><br />1) Sea water and (brackish?) River water. Your suggestion is basically to dam up part of the sea. The Marina Barrage was to dam up the Singapore River. The river water is more easily treated to potability. Seawater will need the more expensive desalination process. The Marina waters was not immediately usable as a water source. Over time, the barrage was raised and lowered to allow the seawater to flow out, and be replaced by the river water. This took several years, and I am not sure that it has been completed. But it will be if it has not. The Punggol and Serangoon rivers have also been dammed up to form two reservoirs, much like the Singapore River (which also includes the Kallang River, I think).<br /><br />2) With the area encompassed by your suggestion, there would be a huge area of sea water, and any rivers feeding into it will take a long time to reduce the salinity to levels treatable by conventional process. <br /><br />3) One other consideration may be the environmental impact of converting the area from a sea into a de facto freshwater lake.<br /><br />4) Security considerations for P. Tekong. Dams or Barrages would mean at least two points of egress from the mainland and P. Ubin. <br /><br />5) Desalination. Maybe faster, cheaper, more flexible, and less disruptive (of the environment) than a sea reservoir (which will require maintenance, monitoring, and the payout may be years or decades away.<br /><br />As I said, these are all speculation off the top of my head. Before coffee. So take it with a grain of salt. Or a shot of seawater.El Lobo Locohttps://www.blogger.com/profile/15175480795509003725noreply@blogger.comtag:blogger.com,1999:blog-5890720061582192467.post-77978193202838734642016-07-21T01:28:58.809+08:002016-07-21T01:28:58.809+08:00I emailed the MND/MEWR Minister/Perm Sec last year...I emailed the MND/MEWR Minister/Perm Sec last year to ask if it was possible to make a manmade reservoir by damming up Pulau Ubin and Tekong with the mainland in a semi-circle.<br /><br />Later this year they announced they are going to join all the drains together and do water recycling. Maybe its cheaper and more efficient to use the mainland to capture excess rainwater and store it underground than build an equivalent size reservoir to Johor at the eastern part of Singapore.Andrew Leunghttps://www.blogger.com/profile/09675248185221866404noreply@blogger.com