Xanthate is found in residual concentrations in tailings dams [[23], [12]]. The molecule is bioaccumulative, and this effect is potentialized when the xanthate is bound with a metal ([[49], [60]]). Due to xanthate toxicity and the substances to which xanthate breaks down, flotation effluents cannot be returned to the environment.
ادامه مطلب
residual xanthate and its by-products in wastewater tailings are not allowed to dispose into environmental streams due to both strong nasty smells and being toxic to biological systems [3−6]. In recent years, especially with increasing effort on environment protection from community and governments, many methods have been
ادامه مطلب
Research Progress of Residual Xanthate in Mineral Processing Wastewater Jiaqiao Yuan, Suqi Li, Zhan Ding, Jie Li, Anmei Yu, Shuming Wen and Shaojun Bai ... efficient, and economical method for removing residual xan-thate from flotation tailings. The main technique is using adsorbents to separate the xanthates from the wastewater. The …
ادامه مطلب
measurement of residual xanthate concentration directly from flotation concentrate cells. ... need to holistically determine reagent dosing rates based on the mineralogy of feed tonnage ... Sampling from the tailings stream of cell …
ادامه مطلب
Residual xanthates in mineral processing wastewater cause severe water pollution and potential air pollution in mining areas. In this work, the subsequent degradation behavior of xanthate after adsorption on pyrite surface was investigated and confirmed for the first-time using potassium ethyl xanthate (PEX) as a model xanthate collector.
ادامه مطلب
UV/VIS Spectrophotometry was employed to measure residual xanthates in key process streams and process return water from the Tailings Storage Facility. This allowed the implementation of dosage ...
ادامه مطلب
Efficient treatment of residual xanthate from tailing wastewater has attracted soaring interesting recently. Herein, effect of activated H 2 O 2 by natural …
ادامه مطلب
method of managing xanthate containing water streams. Same methods of xanthate management and residual xanthate removal may be applied to wet and dry tailings deposition. In all cases, the precise execution of xanthate management needs to be planned site-specifically considering the individual characteristics of each mine, the …
ادامه مطلب
The current study investigated the effects of thiol collectors on the flotation of base metals (BMs) and platinum group metals (PGMs) ores. The properties of a single-mineral flotation test were conducted using sodium isobutyl xanthate (SIBX), sodium ethyl …
ادامه مطلب
However, only half of the xanthate in the flotation process is consumed, while the remainder is discharged to the tailings pond [4,5]. The residual xanthate wastewater can leak out and cause odor ...
ادامه مطلب
This decreases the residence time of xanthates in the water cycle, which decreases spontaneous degradation, but also offers a more eficient method of managing xanthate …
ادامه مطلب
Calcium, sulfate, thiosulfate, and xanthate were found as major contaminating ionic species in the process water discharged from flotation circuits. The …
ادامه مطلب
The accumulation shows seasonal cyclic variation that has an impact on flotation performance. UV/VIS Spectrophotometry was employed to measure residual …
ادامه مطلب
The beneficiation wastewater could leak out. When it contains residual xanthate, it can cause odour nuisances and toxicity to the biota [3], resulting in the deterioration of the surrounding water quality [4], [5]. The efficient treatment of this kind of wastewater is crucial when the aim is to efficiently recycle mine wastewater and promote ...
ادامه مطلب
Xanthate is the most widely used and effective collector in the flotation of sulfide minerals. However, the residual xanthate in flotation wastewater may cause serious environmental pollution and even human health hazards. At present, a variety of treatment technologies have been developed to degrade xanthate pollutants in wastewater, with …
ادامه مطلب
Minerals 2023, 13, 1429 3 of 12 Accordingly, pyrite was selected as a heterogeneous iron source to activate the Fen-ton reaction for the degradation of xanthate in flotation tailings wastewater.
ادامه مطلب
Meanwhile, it is well accepted that residual xanthate in flotation tailings wastewater can not only seriously pollute the ecological environment around the mining area, but also can damage the human nervous system and liver system [7], [8]. Therefore, residual xanthates effective treatment in tailing wastewater is essential to realize the ...
ادامه مطلب
This study objective is to degrade xanthate from flotation tailings wastewater by using a coagulation-flocculation co-Fenton oxidation process in an acid mine drainage (AMD)-H 2 O 2 system. More than 98% sodium butyl xanthate (SBX) removal rate was achieved by the method under optimal conditions.
ادامه مطلب
Semantic Scholar extracted view of "Photocatalytic degradation of xanthate in flotation plant tailings by TiO2/graphene nanocomposites" by Man Jiang et al.
ادامه مطلب
The residual organic reagents (including xanthates) in the flotation tailings can cause environmental issues during their disposal, besides their deleterious influence on the flotation performance ...
ادامه مطلب
The degradation behavior of ethyl xanthate (EX) salt was the most widely used collector in sulfide mineral flotation and emission of flotation tailings with residual EX was harmful to environment. In … Expand
ادامه مطلب
The results obtained give some insight into the environmental fate of ethyl xanthate in tailings streams, 40 and a basis on which to consider the environmental importance of such species in ...
ادامه مطلب
The residual concentration of xanthate in flotation tailings effluent may have environmental consequences as xanthate is toxic for biota. ... Oxidation of potassium n-butyl xanthate with ozone ...
ادامه مطلب
The degradation behavior of ethyl xanthate (EX) salt was the most widely used collector in sulfide mineral flotation and emission of flotation tailings with residual EX was harmful to environment. In this work, hydrogen peroxide (H2O2) was investigated by UV-visible spectroscopy (UV/Vis) at different pH values from 3 to 12.
ادامه مطلب
How imperative is to measure residual xanthate (SIBX) in UG2/Merensky flotation plant? What is the residual xanthate flotation industry standard? Which streams are important, SRT only?
ادامه مطلب
The results obtained give some insight into the environmental fate of ethyl xanthate in tailings streams, and a basis on which to consider the environmental importance of …
ادامه مطلب
In order to minimise the negative effects of the water recirculation caused by the residual reagents recirculated from the tailings pond, as described above, a systematic residual xanthate monitoring and control scheme was developed.
ادامه مطلب
The degradation behavior of ethyl xanthate (EX) salt was the most widely used collector in sulfide mineral flotation and emission of flotation tailings with residual EX was harmful to environment.
ادامه مطلب
Overview of the Kevitsa plant practice on combining geometallurgy with residual xanthate monitoring. ... in the tailings stream mea- ... emitted from xanthate, thus creating a need to search for a ...
ادامه مطلب
UV/VIS Spectrophotometry was employed to measure residual xanthates in key process streams and process return water from the Tailings Storage Facility.
ادامه مطلب
The residual xanthate collectors in the recycled water are one of the most significant compounds that usually result in negative effects on ... 2020) and xanthate-containing water streams are usually turbid which limits the use of photocatalytic oxidation methods. As a result, natural attenuation and acid degradation based on hydrolysis ...
ادامه مطلب
Semantic Scholar extracted view of "Biodegradation of xanthate by microbes isolated from a tailings lagoon and a potential role for biofilm and plant/microbe associations" by K. Lam. ... Removal of the residual xanthate from flotation plant tailings using bentonite modified by magnetic nano-particles.
ادامه مطلب
The thermodynamics studies indicated that the adsorption was spontaneous, exothermic with the reducing entropy. The adsorption tests on the real samples taken …
ادامه مطلب