Case Study: Digested Sludge Dewatering in Pig Farm
Background Information
A pig farm in Kanto region.
To dewater recovered digested sludge from methane fermentation facility, KDS Separator dewatering model has been installed. They value KDS Saparator's small foot print and huge treatment capacity.
| Facility | Pig Farm |
|---|---|
| Kendensha Product | KDS Separator:Dewatering Model + Polymer Preparation System |
| Treating Wastewater | Pig Manure + Candy Methane Fermentation Digested Sludge (Primary Treatment, Flocclulation and Dewatering) |
| KDS Searator Model | Dewatering : SS-611D, 0.4kW |
| KDS Recommended Treatment Capacity | 50kgDS/hr |
| Current Treatment Capacity | 20t (Pig Manure 10ton + Candy 5ton + Waste Bread 5ton) |
Data
| Raw Water | KDS Separator Filtrate (effluent standard) |
|
|---|---|---|
| pH | 7.3 (27.7℃） | 7.6 (27.2℃) |
| SS [mg/L] | 7,700 | 60 |
| BOD [mg/L] | 720 | 320 |
| COD Mn [mg/L] | 2,700 | 290 |
| TN [mg/L] | 1,400 | 860 |
| TP [mg/L] | 270 | 23 |
| SS Recovery Rate | ||
|---|---|---|
| 99.2% | ||
| Thickened Cake Water Content | ||
| 78.9% (Dryness 21.1%) |
Current Treatment Capacity
| Flow Rate [m3/hr] |
Solid Component Thickness [%] |
Treatment Capacity [kgDS/hr] |
Flocculant Dosage per Raw Water[mg/L] |
Thickened Cake Dryness [%] |
|---|---|---|---|---|
| 3.2 | 1.1 | 35.2 | 200 | 21.1% |
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