CELLVATION

In Western Europe alone, according to statistical surveys (2013), the annual production of toilet paper is over 6 million tons per year. (in 2020 already 1/3 higher). 

Austria accounts for over 150,000 tons of this. Of this, 70% ends up in wastewater treatment plants, where it represents a significant component of operating costs.

By using a CELLVATION station at the inlet of the wastewater treatment plant, the inlet load is considerably reduced, resulting in operating cost savings of up to 20%.

A CELLVATION station is characterized not only by the removal of fibrous materials from the wastewater, but also by their upgrading through cleaning, dewatering and, optionally in further treatment stages, hygienization and drying.
The resulting end product is used as a sought-after recyclable material in the pulp industry or, in the form of fluff fibers pellets/granules, as an additive in the chemical industry, construction and agriculture. Further income/utilization
possibilities result from the trade of CO₂ certificates (approx. 25,- €/to).

By testing on site, the actual amount of fiber generated and thus the potential cost savings can be calculated, based on the following facts:

• Reduced accumulation of primary and secondary sludge.
• Thus reduced O₂ demand in the activation process.
• Less conditioner addition for precipitation and hygienization.
• Lower sludge disposal costs.
• Reduction of influent load/loads results in a reduction of the total load of the biological sludge line .
• A reduction of 40% in total settleable solids, and 20% carbon dioxide (CO₂) is achieved.
• Plant operating cost reduction up to 20%.

Process steps:

1. Primary sludge separation
2. Pulp separation with pre-washing
3. Microbelt filtration with patented vibration device for post-washing and extensive cleaning of residual organic loads.
4. Optional downstream
   
   • Hygienization (drying or chemical)
   • Upcycling for end products
   • Packaging - Shipping

Application:

A CELLVATION plant is designed in such a way that it can also be re-fitted to existing plants. Especially where pulp fractions can be profitably filtered and upcycling is economically justifiable in terms of final product. Attractive payback period due to binding purchase contracts for:

• Pulp fraction
• CO₂ certificates