REFERENCE FACT SHEET
PROJECT DESCRIPTION
- Filtered water capacity 2,400 m³/d: 300 m³/d (station 1); additional 2,100 m³/d (station 2)
- Greenfield EPC
- Pre-treatment process steps and ceramic filtration
- Location: Thailand
- In operation since 12/2019
PROCESS CHAIN
- Treated sewage effluent (TSE) from pond pumped to treatment plant
- Retention tank with chlorine dosage for chemical oxidation
- Injection of Alum for coagulation
- Dead-end submerged ceramic flat sheet membrane filtration
- Reverse osmosis (for station 2)
PROCESS FLOW DIAGRAM (STATION 1)
BLOWER FOR AIR-SCOURING
RETENTION TANK FOR CHEMICAL OXIDATION
TSE FROM POND
INJECTION POINT OF CHLORINE
CERAFILTEC WITH 1 TRAIN AND 1×2 TOWERS PER TRAIN
FILTRATION PUMP
SPRINKLER PUMP
BACKWASH PUMP
CAPCLEAN SPRINKLER PUMP
CHEMICAL PREPARATION TANK
INJECTION POINT OF ALUM
FILTERED WATER TANK
FILTERED WATER TO CHILLER
CONCENTRATED SLUDGE DISCHARGE
PERFORMANCE DATA (STATION 1)
The TSE comes from a soybean food processing plant. High amounts of remaining undegraded proteins and oil are daily challenges that can lead to rapid membrane fouling. Further, the storage of the TSE in the ponds increases the formation of algae. Both challenges are solved using CERAFILTEC’s process-integrated membrane cleaning function (CapClean). The membranes are fully recovered with each automated cleaning cycle using chlorine with a soaking time of 3 minutes.
Consistently high flux is achieved by operating the system as active cake layer filtration (ACLF) in conjunction with frequent CapClean execution.
| PARAMETER | UNIT | FEED WATER | FILTERED WATER |
|---|---|---|---|
| Color | Pt-Co | 117 | 39 |
| COD | ppm | 68 | 30 |
| BOD | ppm | 9 | 4 |
| TSS | ppm | 18 | < 1 (nil) |
| TDS | ppm | 946 | 967 |
| Turbidity | NTU | 11.2 | < 0.5 |
| Oil | ppm | 7.2 | < 0.2 |
| PARAMETER | UNIT | VALUE |
|---|---|---|
| No. of trains | 1 | |
| Max. flow per train | m³/hr | 15.5 |
| Max. flux rate | LMH | 215 |
| Filtration time | hrs | 12 x 1.93 |
| Backwash time | sec | 12 x 30 |
| Recovery rate | % | 92.2 |
| Power consumption | kWhr/m³ | 0.04 |
| Color | Feed water 117 Pt-CoFiltered water 39 Pt-Co |
| COD | Feed water 68 ppmFiltered water 30 ppm |
| BOD | Feed water 9 ppmFiltered water 4 ppm |
| TSS | Feed water 18 ppm Filtered water < 1 (nil) ppm |
| TDS | Feed water 946 ppmFiltered water 967 ppm |
| Turbidity | Feed water 11.2 NTU Filtered water < 0.5 NTU |
| Oil | Feed water 7.2 ppm Filtered water < 0.2 ppm |
| No. of trains | 1 |
| Max. flow per train | 15.5 m³/hr |
| Max. flux rate | 215 LMH |
| Filtration time | 12 x 1.93 hrs |
| Backwash time | 12 x 30 sec |
| Recovery rate | 92.2 % |
| Power consumption | 0.04 kWhr/m³ |
PLANT PICTURES (STATION 1)
