Veolia is to deliver a chemical recovery system to Riau Andalan Pulp & Paper (RAPP) paper mill in Kerinci (Riau), Indonesia; one of the largest in the world.
The system aims to optimise the recovery process in the industry of transformation of hardwood cellulose into pulp for textile fibres and fine papermaking, treating 500 tonnes per day of precipitator ash through its Enhanced Chloride Removal Process (ECRP).
RAPP – a subsidiary of Asia Pacific Resources International Holdings Limited (APRIL) – performs pulping washing and cleaning steps which produce an organics-rich liquid stream, which when burned in the recovery cycle generates renewable power that helps the mill become energy self-sufficient.
Over time, however, the process creates chloride and potassium accumulation which, if not tightly controlled, causes corrosion and boiler fouling increasing maintenance costs.
To control these costs and prevent inefficiencies, these chemicals need to be managed, which is why RAPP sought out Veolia’s chemical recovery system.
The system features HPD crystallisation technology and is designed to yield the best control of sodium recovery and chloride and potassium removal steps while minimising energy consumption and related emissions.
“Once again, we are pleased to work with APRIL and build on the success we have achieved together over the years,” said Jim Brown, CEO of Veolia Water Technologies Americas.
“Veolia’s chemical-saving HPD technologies will be key components in the expansion of this important production site in Riau helping its pulping operations become more resource-efficient and sustainable,” added Brown.
The rising paper consumption in Asia and growing global demand for more environmentally friendly fibres for the apparel industry are driving the increase in pulp making capacity to convert renewable fibres into a variety of fine paper products and viscose staple.
In tropical Indonesia, the Riau province is a major hub for the forestry industry and is home to the APRIL Group, the world’s second-largest producer of bleached hardwood kraft pulp.
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