High-flocculability crane electroplating wastewater disposal agent based on modified coal ash and preparation method of high-flocculability crane electroplating wastewater disposal agent

Abstract

The invention discloses a high-flocculability crane electroplating wastewater disposal agent based on modified coal ash. After coal ash is modified, the modified coal ash is added into raw materials to replace partial phosphorite, so that the exploitation quantity of natural phosphorite is reduced, environmental pollution caused by coal ash accumulation is further solved effectively, and the flocculability of the product is improved; meanwhile, after mulberry branches are modified organically, the modified mulberry branches are added into the raw materials as an adhesive compatible with effective chemical adsorbents, the adhesive is good in compatibility with organic pollutants and high in adsorption rate, and finally abundant pores and high-strength cohesive bodies are formed after pelleting and high-temperature roasting fabrication processing; moreover, a compound is formed by the added adhesive and other substances in the roasting process, so that the phase change of natural phosphate rock powder occurring in different temperature intervals is suppressed, the generation of internal stress is reduced, the pulverization degree is reduced, and the prepared disposal agent is high in porosity and surface area ratio, large in adsorption efficiency and high in flocculability.

Description

technical field [0001] The invention relates to the technical field of water treatment agents, in particular to a crane electroplating wastewater treatment agent based on modified fly ash with good flocculation performance and a preparation method thereof. Background technique [0002] With the continuous growth of my country's economy, my country's construction machinery industry is still in a period of rapid development in the future, especially the prospect of crawler crane industry is promising. The "Industrial Structure Adjustment Guidance Catalog (2011 Version)" promulgated by the National Development and Reform Commission clearly pointed out that crawler cranes of 400 tons and above were selected as "encouraged" products as an emerging industry, which indicates that crawler cranes have a bright future. More and more companies are joining the crane industry. Because cranes mostly work outdoors, special attention is paid to their surface treatment, including rust remov...

AI Technical Summary

Problems solved by technology

Although the paper uses relatively cheap natural non-metallic minerals such as natural apatite as adsorption materials to remove heavy metal ions in wastewater, but consumes too many natural non-metallic minerals and belongs to non-renewable resources, which does not meet the requirements of green environmental protection and energy saving. The utilization rate of excess solid waste piled up by many processing enterprises is not high, so it can be effectively utilized and modified to replace part of the natural apatite, and at the same time, an appropriate binder can be added to prepare a good performance, low pulverization degree, Wastewater treatment agent with strong adsorption performance

This not only solves the problem of improper treatment of a large number of solid wastes, but also provides a strong and effective solution to the defects of existing wastewater treatment agents such as high cost, poor treatment effect and low strength.