Low temperature drying: a case study

Incorporating waste treatment processes in systems in which residual energy can be utilized is one of the best residue management alternatives. With an LHV of between 2000 and 4500 kcal/kg, efficiently dried sewage sludge can be used as standard fuel, thereby reducing primary energy consumption and the CO2 quota.

1 Introduction

The emission reduction requirements established by the Kyoto Protocol pose an enormous challenge for the industrial world, and most particularly for the main industrial consumers of fossil fuels, such as, for example, the cement industry. In this type of industry, fuel costs exceed 30 % of production costs. Consequently, for several years now, most of these industries have started implementing energy optimisation measures in their processes. To date, strategies have been based on the search for alternative fuels – classified as substitute ­fuels, e. g. sewage waste [1] and...

Related articles:

Issue 2020-7-8 WORLD CEMENT ASSOCIATION (WCA)  HUAXIN CEMENT | SINOMA CEMENT | SINOMA INTERNATIONAL ENGINEERING

Contributing to community sustainability: The role of co-processing municipal waste in China

Introduction Coal is currently the fuel that is most widely used in cement production, representing 70?% of global thermal energy consumption. Other fossil fuels, including petcoke, contribute 24?%...

more
Issue 2014-09 SID Group

Pre-processing hazardous waste

1 Introduction The first SMP installation for the cement industry was delivered in 2005 to the BBMG Beijing cement plant, China. Up to now SID received several additional contracts for the delivery of...

more
Issue 2022-5 US 2022/0153642 A1

Wastewater treatment system and method for producing sludge for cement manufacturing

(22) 31.01.2022 (43) 19.05.2022 (57) A wastewater treatment system, including a wastewater phase-separation device, may be used to combine at least one primary treatment chemical and wastewater to...

more
Issue 2016-10 DALLA CEMENT FACTORY

An initiative for alternative fuels co-processing in the cement kiln

1 Introduction The energy crises and fast depleting natural resources have become a matter of great concern and have created awareness all over the world. The global impact of the cement industry is...

more
Issue 2011-02

Turning waste heat into clean energy

ABB and Holcim Switzerland have agreed to install ABB’s newly developed heat recovery and electrical power production system at their cement plant in Untervaz/Switzerland (Fig. 1). ABB’s...

more