B-Energy Biogas Production

The B-Energy system (sludge module) allows for the treatment of diluted, concentrated or dewatered incoming organic sludge in an operating range of Total Suspended Solids from 1% to 30% or more, equalizing the concentration by mechanical pre-treatment. The pretreated sludge is sent to the hydrothermal carbonization (HTC) process under the optimum fluid dynamic conditions and then to solid-liquid separation by filter press, operating without the use of polyelectrolytes. COD-enriched waters can be upgraded to biogas by dedicated anaerobic digester or by recirculating them in an existing digester.

B-Energy is offered in versions B-Energy LD for diluted sludge and B-Energy HD for concentrated or already dewatered sludge.

Key benefits of B-Energy
  • Reduction in the volume of dewatered sludge to be handled to other disposal facilities (e.g., landfill) or to other forms of recovery (e.g., waste-to-energy, composting, agricultural spreading) by up to 80% by weight
  • Biogas production from the COD-enriched waters leaving the filter press

B-Energy LD

B-Energy Low Density, which treats diluted sludge (indicatively [TSS] < 10%), features a pre-concentration station to reduce the volumes to be handled in the hot phase (HTC) and in the solid-liquid separation phase with filter press, for overall energy efficiency.

B-Energy LD is the solution designed for sewage treatment plants with large flows of sludge for disposal.

B-Energy HD

B-Energy High Density treats concentrated sludge (indicatively [TSS] = 10-18%), and features mechanical homogenization pretreatment. In its strong version, dedicated to dewatered sludge (indicatively [TSS] > 20%), it includes the turbodissolver suitable for liquefying the dewatered sludge again by appropriately adjusting its density by dosing water recirculated from the plant itself.

Controlling the density of the incoming sludge allows the volumes of the carbonization (HTC) and solid-liquid separation stages with filter press to be optimized for overall energy and plant efficiency.

B-Energy HD is the ideal solution for those who deliver to a single treatment hub, concentrated or dewatered sludge that comes from other smaller plants.

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