Grey Digestor Pre-commissioning on 25 October 2010 (Monday)

As per initial plans, spoke to Mr Kannan to finalize digestor construction & design at ENSURE:

1. Grey-D (w/o totaliser & Gas-D) to be commissioned on Wed
2. Vacuum trucked and Forklift booked for Wednesday
3. Buy 3/8" or 1/4 ball valve, nipple + coupling & End-cap for backwash valve; to retain 1/2" sight glass (all sch 80)
4. Buy 2 2" End-caps, 1 1" End-caps (sch 80) + create their respective screwed-on piping ends
5.  Insert PI, Modify aerobic T-vent - buy 1" End-cap (non-screw-on type)
6. Approach Mdm Tan for Photometer - sulphate test chemical
7. Drill holes at base against rain accumulation + Funnel hook
8. Got Brenda to contact Drager Company
9. KH to buy laminating plastic

The Blue & Grey Digestors; Blue for commercialisation, Grey for Testing:

1/2" Sight Glass; yet to insert backwash valve:

The LEAK-PRONE Blue Prototype 1; transported back from Vision Farm (SVF) last friday:

Scrubber Outlet directs water straight to the ground:

Blue-D, bottom issue - under influence of weight, drum base is compressed - initial measurements void. To discuss with Dr Han & design a fool-proof stand:

The incredibly weak drum cap; HDPE-made, unable to support the weight of fittings, giving rise to air-leakage; Dr Han to create an alternative PVC/Metal top with the same dimensions, so that we may "screw-on" the fittings. This design takes into consideration both mechanical strength/integrity and air-leakage:

The condensate drain port for  methane capture commissioned:

On Wed, 27/10/10:

1. Marcus: Load Orange-D at SVF
2. Brenda: Monitor Grey-D transportation at Tuas
3. KH: to join group at SVF once lesson ends
 

On Fri, 19/10/10:

• KH and Brenda to meet Dr Han; Blue-D issues
• Marcus to join us at Sun Hee to purchase fittings (evenings)

Kian How, signing off on 25/10/10, 7.30pm.