What will eventually be the largest textile weaving/knitting and dyeing facility in South America has contracted to build a Sequencing Batch Reactor Process to treat their wastewaters. Approximately 80% of the wastewater will be from the knitting, weaving and dyeing of cotton with 20% from the dyeing of polyester fabrics.
The facility is located in a new industrial park "Maquiladora" (tax free trade zone), in Comayagua, central Honduras.
The process train consists of inlet pumping station, aerated equalization basin (eight hours storage), two-stage neutralization nutrient balancing, influent cooling tower, two-basin Sequencing Batch Reactors and sludge disposal to drying beds. Final effluent will be discharged to a nearby stream. Phase I colour destruction will be biological treatment in the SBR. If required, Phase II colour removal will be by ozonation. All process functions are PLC controlled.
Napier-Reid Ltd., Markham, Ontario, was selected by the owner, a state owned corporation of the Peoples Republic of China, to provide process and civil engineering design, process equipment supply, site supervision, start-up commission and operator training.
Table 1 indicates plant design/dimensions. As space and power are at a premium, the process was chosen for its small footprint and low overall power consumption.
Construction completion is scheduled for October 2000.
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