A kind of filter agent for treating sewage produced by printing and dyeing sludge and its manufacturing method

Abstract

The invention relates to a filtering agent for treating sewage in dyeing sludge production and a manufacturing method thereof. The method is characterized by comprising the following steps: preparing dyeing sludge into powder in the manner of high-temperature incinerating, breaking, sorting, magnetic separation, grinding and screening, and then adopting a biaxial paddle mixing stirrer for mixing and stirring the powder with blast furnace residue powder, oxalic acid, a chemical oxygen demand removing agent, an ammonium nitrogen removing agent and a heavy metal capturer, comprehensively compounding and cycling the material in the machine under a mechanical effect and in a widely staggering manner without dead angle, thereby achieving the purpose of uniformly dispersing the mixed filtering agent; conveying the uniformly mixed filtering agent into a special storage silo; and adopting a full-automatic electronic metering weighting packager system for packaging and then preparing into a filtering agent product. The test proves that the product meets the requirement of natural industrial standard and has the advantages of no pollution, low cost, high benefit, capabilities of solving the problem of secondary pollution of the dyeing sludge, protecting the ecological environment and saving land, and the like.

Description

technical field [0001] The present invention relates to a filter agent for sewage treatment produced from printing and dyeing sludge. Specifically, it uses sludge from a textile printing and dyeing factory, and after mechanical dehydration, undergoes high-temperature incineration, crushing, sorting, magnetic separation, crushing, The filter agent produced from the sieved powder and blast furnace waste slag powder as main raw materials belongs to the field of waste treatment. [0002] The invention also relates to a manufacturing method of the printing and dyeing sludge filter agent. Background technique [0003] Printing and dyeing sludge is a kind of mixed solid waste that is separated from the industrial wastewater produced in the textile printing and dyeing process of the textile printing and dyeing factory and the domestic sewage discharged from the living area of ​​the factory after being treated by physical and chemical methods in the sewage treatment plant; printing a...

AI Technical Summary

Problems solved by technology

[0003] Printing and dyeing sludge is a kind of mixed solid waste that is separated from the industrial wastewater produced in the textile printing and dyeing process of the textile printing and dyeing factory and the domestic sewage discharged from the living area of ​​the factory after being treated by physical and chemical methods in the sewage treatment plant; printing and dyeing The sources of sludge components are relatively complex, which contains a large amount of heavy metal elements and toxic and harmful substances such as cadmium, mercury, lead, chromium, arsenic, nickel, zinc, copper, cyanide, pathogenic bacteria, parasite eggs, organic pollutants, etc. One of the hazardous solid wastes stipulated by the state; with the rapid development of China's industrial production and economy, the number of textile printing and dyeing enterprises is increasing year by year, and the scale is getting larger and larger, and the discharge of printing and dyeing industrial wastewater and domestic sewage in the living areas of employees is increasing. The production of printing and dyeing sludge has also increased rapidly; a large amount of accumulated printing and dyeing sludge will not only occupy a large amount of land, but also contain harmful components such as heavy metals; copper, chromium, arsenic, mercury, cadmium, lead, nickel, zinc, pathogenic bacteria, Parasite eggs, organic pollutants and odor will become a major public hazard affecting urban environmental sanitation; governments at all levels and environmental protection departments are actively looking for effective treatment technologies. At present, the treatment methods for printing and dyeing sludge in China mainly use landfill method to reduce environmental pollution; however, printing and dyeing sludge has complex components and high water content, especially heavy metals. If it is directly buried without treatment, it will pollute soil and groundwater resources, and easily produce secondary pollution. secondary pollution, causing serious harm to the environment; long-term landfilling requires a large amount of land resources, how to properly and scientifically treat and dispose of printing and dyeing sludge to achieve reduction, stabilization, harmlessness and resource utilization has become a One of the major research topics widely concerned by scientific and technological personnel in the environmental circles of China and the world