Table 4.
Typical wastewater quality parameters measured before and after a 3 hour electrolysis cycle over the course of the field testing of the AMD prototype. Values are average of three replicates
| Date(dd/mm/yyyy) | Unfiltered COD (mg O2 L−1) |
TKN or NH3 (mg N L−1) |
TSS (mg L−1) |
Chloride (mg Cl− L−1) |
Total/free chlorine (mg Cl2 L−1) |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Before | After | Before | After | Before | After | Before | After | Before | After | |
| 18/09/2014 | 32 | — | n.d. | — | — | — | — | — | — | — |
| 14/10/2014 | 100 | — | 31 | — | 100 | — | — | — | — | — |
| 03/11/2014 | 90 | n.d. | — | — | 100 | 50 | 182 | 35.1 | — | — |
| 29/11/2014a | 43 | 11 | 15 | 2 | — | — | 100 | 30 | — | — |
| 23/02/2015 | 100 | 48 | — | — | — | — | — | — | — | — |
| 27/08/2015 | — | — | — | — | — | — | — | — | 0b | 39b |
| 01/12/2015 | 240 | 40 | 43 | 5 | — | — | — | — | — | — |
| 16/01/2016 | 223 | 26 | — | — | — | — | 235 | 203 | <1c | — |
| 02/02/2016 | 371 | 95 | — | — | — | — | 886 | 382 | <1c | 2.73c |
| 31/03/2016 | 320 | 50 | 1.05d | 2.04d | 245 | 87 | — | — | — | — |
| 11/04/2016 | 234 | 56 | 25d | 40d | 180 | 35 | 425 | 390 | <1c | <1c |
a
Analyses performed by third-party (Ahmedabad Municipal Corporation Central Lab). Total nitrogen was measured.
b
Total chlorine.
c
Free chlorine.
d
Potential interference for ammonia measurement.