Solids Removal & Dewatering Unit™ (SRDU)
Solids Flocculation, Flotation, and Dewatering System
Solids Floculation and Flotation System
- High efficiency injection of compressed air and polymer into mixing system provides enhanced contact between solids and polymers
- Space efficient – about 2-4x smaller than a typical DAF
- Enhanced solids removal means cleaner effluent (<0.1% TSS typically)
- Adaptability – can be adjusted to process different flow rates and is more tolerant of wastewater variations than a DAF
- Typically uses 20%-50% less chemical than DAF systems
- Produces drier sludge
Solids Floculation and Flotation System
- Better contaminant removal rates than DAF systems
- Adaptability–adjusts to higher flowrates
and higher contaminant levels without equipment changes. - Less chemicals–uses 20%-80% less chemicals than DAF systems
- Smaller Footprint–uses less space than other flotation and
flocculation systems. - Drier Sludge–the technology of using long chain polymers
produces drier sludge(8 to 13% drier and over 20% after decanting.)
Multi-Disk Press Dewatering System
- Stainless steel discs with abrasion resistant coating rotate to squeeze water out of flocculated solids
- Creates a cake-like product ideal for land application or further processing into fertilizers, soil amendments, or biochar
- Made in the USA
Time-Tested Polymer Solutions
- We have partnered with Soil Net LLC to supply time-tested polymer solutions for manure and digestate applications.
- Dr. Aicardo Roa has been developing polymers specifically for manure separation for over 20 years and we know conclusively that his formulations are the most cost-effective on the market today.
Key Features
- Compact and energy-efficient
- Flocculates suspended solids to create clean effluent
- Removes volatile solids from digestate to biogas project enhance CI score
- Creates ~20%TS wet cake product that’s easy to handle and move
- Highly automated for hands-free operations
Typical performance with digested dairy manure post screw-pressing:
Parameter | Units | SRDU Influent | SRDU Effluent | % Removal |
---|---|---|---|---|
Total solids | % | 3.9 | 1.6 | 59% |
Total volatile solids | % | 2.2 | 0.6 | 70% |
Total suspended solids | mg/L | 23,500 | 1,600 | 93% |
Ammoniacal Nitrogen | mg/L | 847 | 503 | 41% |
Organic nitrogen | mg/L | 1,144 | 400 | 65% |
Total Kjeldahl nitrogen (TKN) | mg/L | 1,989 | 911 | 54% |
Phosphorus | mg/L | 400 | n.d. | >90% |
Potassium | mg/L | 2,600 | 2,200 | 15% |
Sulfur | mg/L | 204 | n.d. | >90% |
Calcium | mg/L | 1,889 | 300 | 84% |
Magnesium | mg/L | 643 | 300 | 53% |
Sodium | mg/L | 1,957 | 1,725 | 12% |
Iron | mg/L | 41.3 | n.d. | >90% |
Manganese | mg/L | 7.3 | 1.0 | 86% |
Zinc | mg/L | 11.3 | 1.0 | 91% |
Copper | mg/L | 19.3 | 2.0 | 90% |
pH | S.U. | 8.6 | 8.5 | 1% |