Environmentally sound and energy-efficient treatment of sewage sludge

Sustainable solutions for optimal energy-efficient or agricultural recycling and disposal of municipal sewage sludge.

Two million metric tons of sewage sludge dry matter

Besides extracting energetically reusable fermentation and sewage gases from sewage sludge, some two million metric tons of sewage sludge dry matter result annually from wastewater treatment in Germany. The sewage sludge is either used agriculturally or, according to the Federal Office of the Environment (UBA), over 53 percent is disposed of thermally and this proportion is increasing.

Environmentally sound and economic sewage sludge treatment

For two decades, KLT-Consult has offered solutions for environmentally sound and economic sewage sludge treatment (such as thickening, hygienisation, biological sludge stabilisation) with a focus on dewatering and cost-efficient drying. In 2011, drying plants were operating at some 114 German sites. Compared to wet sludge, dewatered and dry sewage sludge has the advantage that the amount of sewage sludge is reduced, storage and transportability is improved, as well as microbiological stabilisation, hygienic safety and greater heating value.

Operational sewage sludge mono-incineration plants

Operational sewage sludge mono-incineration plants have cost benefits through generation of electricity and use of heat energy, reduction in transport-related CO2 emissions and possibly subsequent phosphorous recovery from the resulting ash. Whether investment in an operational sewage sludge mono-incineration plant will be profitable for your municipal company, we determine on the basis of viability calculations.

Interdisciplinary specialist expertise

Our interdisciplinary team of specialist planners from water management, environmental engineering and power engineering will be pleased to inform you about what would be your best possible sewage sludge treatment strategy for agricultural recycling or energy-efficient use. In addition, we offer conceptual studies and future-oriented master planning, taking account of innovative phosphorous recovery and sewage sludge treatment processes and interim solutions through to the technically and economically efficient phosphorous recycling.