CN105923691A - Low-cost crane electroplating wastewater disposal agent based on modified fly ash and preparation method of low-cost crane electroplating wastewater disposal agent - Google Patents

Abstract

The invention discloses a low-cost crane electroplating wastewater disposal agent based on modified fly ash. After fly ash is modified, the modified fly ash is added into raw materials to replace partial phosphorite, so that the exploitation quantity of natural phosphorite is reduced, and environmental pollution caused by fly ash accumulation is further solved effectively; meanwhile, after straw powder and cinnamomum camphora leaves are modified organically, the modified straw powder and cinnamomum camphora leaves are added into the raw materials as adhesives compatible with effective chemical adsorbents, the adhesives are 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 adhesives 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 reduction rate for zinc and nickel in wastewater by using the prepared disposal agent is 85% or above.

Description

A kind of low cost crane compound for treatment of electroplating wastes based on modified dedusting ash and preparation method thereof

Technical field

The present invention relates to water treatment agent technical field, particularly relate to a kind of low cost crane compound for treatment of electroplating wastes based on modified dedusting ash and preparation method thereof.

Background technology

Along with the sustainable growth of China's economy, following one period China's construction machinery industry still in high-speed development period, particularly crawler crane industry promise well." industry restructuring guidance list (basis in 2011) " that National Development and Reform Committee promulgates explicitly points out, 400 tonnes and above crawler crane are chosen as " encouragement class " product as new industry, imply that crawler crane promise well, so causing increasing enterprise to join Crane Industry.Owing to crane mostly is outside work, therefore its facing operation is particularly paid attention to, including eliminating rust, electroplate, spraying paint, the most also produce a large amount of waste water, and containing substantial amounts of metal ion in waste water, such as Cu²⁺、Ni²⁺、Cr³⁺、Zn²⁺、Pb²⁺、Ag⁺、Cd²⁺Deng, toxicity is very big, and especially plating is one of with serious pollution industry, and if do not recycled the waste also resulting in resource, the healthy of people and quality of life in serious threat.

The most widely used chemical precipitation method that is still of electroplating waste water treatment technology the most both at home and abroad, but treatment effeciency is low, sediment weight big, easily cause secondary pollution etc..Though the macromolecular heavy metal chelating agent developed in recent years has good treatment effect, but expensive, it is difficult to accepted by Chinese market.The developmental research utilizing natural polymer heavy metal containing wastewater treatment agent is increasingly concerned, " preparation of amino modified starch heavy metal containing wastewater treatment agent and application " author utilizes amino modified starch to process the heavy metal ion in actual waste water, clearance is close to 100%, but, the method is to use These powdered adsorbents to process waste water, and aftertreatment technology is more complicated.As used granulating technique to make granular adsorbent, then process technique relatively simple, and it is few to consume power.

" preparation of a kind of heavy metal containing wastewater treatment agent and the characterization research of applied research-granular wastewater treatment agent " literary composition, with modified dicyanodiamide as raw material, uses the granulating technique rolling granulation to prepare the graininess waste water treating agent of function admirable.Result shows: the granular wastewater treatment agent of preparation removes Pb²⁺Ability can reach 112.28mg/g, and the structure of water treatment agent, compared with the structure of modified natural apatite, does not occurs great change, preferably maintains the properties of the natural apatite of modification.Simultaneously because the addition of additive, define the cohesive body of abundant hole and high intensity.Although literary composition is the heavy metal ion removing in waste water as adsorbing material with natural non-metallic mineral such as relatively inexpensive natural apatite, but consume too much natural non-metallic mineral and belong to non-renewable resources, do not meet the requirement of environment protecting and power-saving, the utilization rate of solid waste that excess is piled up by the most numerous processing enterprises is the highest, therefore can effectively use and in addition modified with the natural apatite of Substitute For Partial, add the binding agent of adaptation with the waste water treating agent that prepare function admirable, efflorescence degree is low, absorption property is strong simultaneously.The most not only solve a large amount of fixed-end forces difficult problem improperly but also provide strong effective solution for defects such as existing waste water treating agent cost high disposal weak effect intensity are low.

Summary of the invention

The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of low cost crane compound for treatment of electroplating wastes based on modified dedusting ash and preparation method thereof.

The present invention is achieved by the following technical solutions:

A kind of low cost crane compound for treatment of electroplating wastes based on modified dedusting ash, is prepared by the raw materials in: apatite 37-39, dedusting ash 24-26, powder of straw 14-16, Folium Cinnamomi porrecti 16-18, polyacrylamide 6-8, iron sulfate 3-5, sodium hydroxymethane sulfonate 2-3, carrageenan 1-3, propylene glycol methyl ether acetate 4-6, trimethoxy silane 5-7, sodium polyacrylate 3-4, suitable quantity of water.

The manufacture method of described a kind of based on modified dedusting ash low cost crane compound for treatment of electroplating wastes, comprises the following steps:

(1) powder of straw, Folium Cinnamomi porrecti being dried and crushed, adding mass fraction is that the soda ash solution of 10-20% soaks 24 hours at 70-90 DEG C, uses deionized water rinsed clean, drains drying, adds trimethoxy silane carrageenan ultrasonic grinding 20-30 minute, dries；

(2) dedusting ash is sprayed concentrated sulfuric acid solution sulfonation in a nitrogen environment that mass concentration is 98% process 15-20 minute, filtration with hot wash to without SO4^2–, add propylene glycol methyl ether acetate, sodium hydroxymethane sulfonate magnetic agitation 2-3 hour, dry；

(3) apatite is calcined 2-3 hour in the oxygen atmosphere of 200-300 DEG C, it is cooled to room temperature pulverize, apatite powder must be activated, add step (2) material to be ground, add step (1) material and the mixing of other residual componentss, spray into 10% moisture, pelletize, drying, last in 700-750 DEG C of roasting 15-20 minute, discharging.

The invention have the advantage that the present invention adds Substitute For Partial apatite in raw material to and not only reduces the yield of natural apatite by modified for dedusting ash and the most effectively solve dedusting ash and pile up the environmental pollution caused；The present invention is also by powder of straw simultaneously, add in raw material as bonding agent and the effective chemosorbent of compatibility after Folium Cinnamomi porrecti is organically-modified, adsorption rate good with the organic pollution compatibility is high, through pelletize after, after high-temperature roasting PROCESS FOR TREATMENT, define the cohesive body of abundant hole and high intensity, and the binding agent owing to adding forms compound with other material in roasting process, inhibit the phase transformation that natural ground phosphate rock occurs in different temperatures interval, reduce internal stress to produce, reduce efflorescence degree, utilize the inorganic agent that the present invention prepares to the zinc in waste water, the reduction rate of nickel is more than 85%.

Detailed description of the invention

A kind of low cost crane compound for treatment of electroplating wastes based on modified dedusting ash, is prepared by the raw materials in: apatite 37, dedusting ash 24, powder of straw 14, Folium Cinnamomi porrecti 16, polyacrylamide 6, iron sulfate 3, sodium hydroxymethane sulfonate 2, carrageenan 1, propylene glycol methyl ether acetate 4, trimethoxy silane 5, sodium polyacrylate 3, suitable quantity of water.

The manufacture method of described a kind of based on modified dedusting ash low cost crane compound for treatment of electroplating wastes, comprises the following steps:

(1) powder of straw, Folium Cinnamomi porrecti being dried and crushed, adding mass fraction is that the soda ash solution of 10-20% soaks 24 hours at 70-90 DEG C, uses deionized water rinsed clean, drains drying, adds trimethoxy silane carrageenan ultrasonic grinding 20-30 minute, dries；

(2) dedusting ash is sprayed concentrated sulfuric acid solution sulfonation in a nitrogen environment that mass concentration is 98% process 15-20 minute, filtration with hot wash to without SO4^2–, add propylene glycol methyl ether acetate, sodium hydroxymethane sulfonate magnetic agitation 2-3 hour, dry；

(3) apatite is calcined 2-3 hour in the oxygen atmosphere of 200-300 DEG C, it is cooled to room temperature pulverize, apatite powder must be activated, add step (2) material to be ground, add step (1) material and the mixing of other residual componentss, spray into 10% moisture, pelletize, drying, last in 700-750 DEG C of roasting 15-20 minute, discharging.

The eliminating rate of absorption utilizing the crane compound for treatment of electroplating wastes heavy metal ion that the present invention prepares can reach 93.23%；BOD clearance is 98.23%；COD clearance is 97.24%.

Claims (2)

1. a low cost crane compound for treatment of electroplating wastes based on modified dedusting ash, it is characterized in that, be prepared by the raw materials in: apatite 37-39, dedusting ash 24-26, powder of straw 14-16, Folium Cinnamomi porrecti 16-18, polyacrylamide 6-8, iron sulfate 3-5, sodium hydroxymethane sulfonate 2-3, carrageenan 1-3, propylene glycol methyl ether acetate 4-6, trimethoxy silane 5-7, sodium polyacrylate 3-4, suitable quantity of water.

The manufacture method of a kind of low cost crane compound for treatment of electroplating wastes based on modified dedusting ash the most according to claim 1, it is characterised in that comprise the following steps:

(1) powder of straw, Folium Cinnamomi porrecti being dried and crushed, adding mass fraction is that the soda ash solution of 10-20% soaks 24 hours at 70-90 DEG C, uses deionized water rinsed clean, drains drying, adds trimethoxy silane carrageenan ultrasonic grinding 20-30 minute, dries；

(2) dedusting ash is sprayed concentrated sulfuric acid solution sulfonation in a nitrogen environment that mass concentration is 98% process 15-20 minute, filtration with hot wash to without SO4^2–, add propylene glycol methyl ether acetate, sodium hydroxymethane sulfonate magnetic agitation 2-3 hour, dry；

(3) apatite is calcined 2-3 hour in the oxygen atmosphere of 200-300 DEG C, it is cooled to room temperature pulverize, apatite powder must be activated, add step (2) material to be ground, add step (1) material and the mixing of other residual componentss, spray into 10% moisture, pelletize, drying, last in 700-750 DEG C of roasting 15-20 minute, discharging.