Two systems using ash–cinder and dust–offgas to treat textile dyeing wastewater were studied, one being an ash-cinder filtration adsorption system, and the other an integrated system consisting of ash–cinder filtration–adsorption and dust/offgas scrubbing adsorption, in which high-color dyeing wastes were introduced to the scale-removal system of a boiler, resulting in both hydraulic antiscaling and wastewater treatment. Because of the very low cost of wastewater treatment and the saving of antiscaling process, comprehensive treatment and utilization of various wastes was sucessfully realized.

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