Waste-to-Energy Solutions

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Waste to Energy Solutions

RWL Water produces biogas from biomass to provide clients with innovative waste-to-energy solutions.

RWL Water’s experience, skills, and attention to energy savings have led to optimal completion of the industrial cycle by recycling process waste. We are experts in the installation of anaerobic treatment systems and the development of cost-effective solutions for our customers.

RWL Water offers customized waste-to-energy plants for the production of biogas, beginning with the analysis of the type and quantity of biomass to be treated in order to optimize the solution according to customer needs.

Every Biomass Is a Resource

Biomass treatment by anaerobic digestion produces biogas, which allows the simultaneous generation of electricity and thermal energy. With RWL Water’s technological solutions, ordinary livestock manure, vegetable silage, and more complex biomasses such as food-industry waste (from slaughterhouses, and whey, beer, and fruit juice production) can become resources.

RWL Water personnel are experts in designing biomass plants and maximizing biogas production performance. We install digesters that are engineered to continue working throughout routine or unexpected maintenance.

Every firm — whether industrial or agricultural — is different, and consequently the biomasses produced have different characteristics. Its capacity to produce biogas is tested in RWL Water laboratories before the plant is designed, and an economic analysis is performed to establish the investment return in the local environment.

Biogas Desulfurization

Biogas is rich in hydrogen sulfide, which is harmful to cogenerators and boilers. Unlike its competition, RWL Water’s biogas desulfurization systems do not involve blowing air into the digester dome, or the usual scrubbing of the biogas with chemical reagents.

The scrubbing process adopted by RWL Water exploits a synergic process that transfers the hydrogen sulfide from the gas to the scrubbing solution and a solid sulfur oxidization phase, guaranteeing greater efficiency in wet removal of the hydrogen sulfide and a drastic reduction in the consumption of reagents and operating costs. This RWL Water solution is the most cost-effective in the market.

Nitrogen Conversion

Anaerobic fermentation reduces much of the organic carbon contained in biomass, but leaves nitrogen content unchanged. Disposal of the digestate on farmland is therefore a problem, especially in regions where the amount of nitrogen that can be spread is restricted.

With its expertise in the removal of nitrogen from wastewater, RWL Water proposes both traditional nitrification-denitrification and a more innovative, completely autotrophic biological process that does not require organic carbon. Both processes convert the nitrogen of the digestate into gaseous nitrogen without using acids or other chemicals, and without generating any byproduct.

Waste-to-Energy Case Studies

  • A brewery in Bari, Italy, produces 53 million gallons of beer annually. The brewer worked with RWL Water to convert its wastes from production into energy, yielding 3,700 cubic meters of methane a day. This is sufficient to provide power to about 280 homes.
  • A slaughterhouse in Verona, Italy, processes more than 300 million pounds of poultry each year. It creates 6,000 cubic meters of methane a day, or enough energy daily for 480 households.

What waste-to-energy challenges can we help solve for you? Contact us for more information about our waste-to-energy solutions or to request a quote.