Immobilization of heavy metals in electroplating sludge by biochar and iron sulfide

2016 ◽  
Vol 23 (14) ◽  
pp. 14472-14488 ◽  
Author(s):  
Honghong Lyu ◽  
Yanyan Gong ◽  
Jingcshun Tang ◽  
Yao Huang ◽  
Qilin Wang
Keyword(s):  
Heavy Metals ◽  
Iron Sulfide ◽  
Electroplating Sludge

Stability of Ceramic Glazes Obtained by Valorification of Anorganic Pigments Extracted from Electroplating Sludge

2018 ◽  
Vol 69 (3) ◽  
pp. 571-574
Author(s):  
Mihaela Andreea Mitiu ◽  
Maria Iuliana Marcus ◽  
Maria Vlad ◽  
Cristina Mihaela Balaceanu
Keyword(s):  
Heavy Metals ◽  
Leaching Tests ◽  
Ceramic Tiles ◽  
Research Activity ◽  
Limit Values ◽  
Leaching Potential ◽  
International Standard ◽  
Ceramic Samples ◽  
Electroplating Sludge ◽  
The Stability

This paper presents the results of the research activity in order to etablish the stability and leaching potential of ceramic tiles which have been developed using glazes colored with pigments obtained by the extraction of chromium and iron metals from electroplating sludge. All these ceramic tiles contain various amounts of heavy metals in their glazes due to the pigments composition. The ceramic samples have been subjected to leaching tests in order to detect if various elements of relevance such as chromium, lead, cadmium, zinc or iron migrated to any great extent into test solutions. Leaching tests have been performed following the international standard SR ISO 10545-15 method for specific metals leaching into 4% acetic acid solutions at 220C after a 24h period and the international standard SR EN 12457/1-4 method with distilled water as leaching agent at LSR of 10 l/kg, for 24h period. Amounts of heavy metals have been negligible or non-detectable (iron) in the leaching solutions, being well below the limit values established by the legislation in force.

Extracting heavy metals from electroplating sludge by acid and bioelectrical leaching using Acidithiobacillus ferrooxidans

2020 ◽  
Vol 191 ◽  
pp. 105225 ◽  
Author(s):  
Ping Wu ◽  
Li-juan Zhang ◽  
Chao-ba Lin ◽  
Xin-xin Xie ◽  
Xiao-yu Yong ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Acidithiobacillus Ferrooxidans ◽  
Electroplating Sludge

Marble wastes as amendments to stabilize heavy metals in Zn-Electroplating sludge

2017 ◽  
Vol 6 (1) ◽  
pp. 15-23
Author(s):  
Khalifa Riahi ◽  
Safa Chaabane ◽  
Bechir Ben Thayer
Keyword(s):  
Heavy Metals ◽  
Electroplating Sludge

Speciation Analysis of Heavy Metals in Electroplating Sludge and the Effect of Composting

2011 ◽  
Vol 396-398 ◽  
pp. 1975-1979
Author(s):  
Jin Long Yan ◽  
Gui Xiang Quan ◽  
Cheng Ding
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
High Temperature ◽  
Speciation Analysis ◽  
The Other ◽  
Forced Ventilation ◽  
Sludge Compost ◽  
Metal Contents ◽  
Electroplating Sludge ◽  
Agricultural Use

Electroplating sludge is always listed as hazardous waste due to the high content of heavy metals. The most economical and available way for disposal of sludge is soil application of sludge compost, and the major limitation in agriculture utilization is the total heavy metal contents and their bioavailability to the soil–plant system. The effect of composting on the speciation of heavy metals in an electroplating sludge was studied, and the potential environmental impacts were also assessed. The electroplating sludge was composted with rice straw and sawdust by static aerobic method at high temperature with forced ventilation. Results showed that the exchangeable species of copper and nickel were significantly decreased after the compost procedure, and the other kinds of species were increased differently. Data in this research indicated that composting can reduce the activity of heavy metals to some extent to achieve the agricultural use.

The influence of heavy metals on the polymorphs of dicalcium silicate in the belite-rich clinkers produced from electroplating sludge

2009 ◽  
Vol 170 (1) ◽  
pp. 443-448 ◽  
Author(s):  
Ying-Liang Chen ◽  
Pai-Haung Shih ◽  
Li-Choung Chiang ◽  
Yi-Kuo Chang ◽  
Hsing-Cheng Lu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Dicalcium Silicate ◽  
Electroplating Sludge

scholarly journals Glazing effect for producing environmentally friendly ceramics for cladding applications

2021 ◽  
Vol 75 (3) ◽  
pp. 167-173
Author(s):  
Elizaveta Pavlycheva ◽  
Evgeniy Pikalov ◽  
Oleg Selivanov
Keyword(s):  
Heavy Metals ◽  
High Performance ◽  
Ceramic Materials ◽  
Environmental Safety ◽  
Raw Material ◽  
Charge Composition ◽  
Material Base ◽  
Pressing Pressure ◽  
Electroplating Sludge ◽  
Environmentally Safe

This paper presents results of comparative studies of environmental safety of ceramic materials, based on a low-plasticity clay with the introduction of galvanic sludge, boric acid and titanium dioxide in 3 different combinations. The experimental samples were manufactured under 15 MPa pressing pressure and at the maximum firing temperature of 1050 oC. Prior to the toxicological experiments, diurnal extracts of the materials into the model neutral and acidic media were obtained. The toxicological safety was determined by using the Daphnia mortality method, and by comparing the maximum permissible concentrations of heavy metals for drinking and household water with the heavy metals? concentrations in diurnal extracts. The presented data show that the combined introduction of all the investigated additives results in the glazing effect of ceramic particles surfaces so that an environmentally safe material can be produced that exhibits sufficiently high-performance properties. The use of low-plastic clay and electroplating sludge expands the raw material base for producing ceramics and allows the disposal of environmentally hazardous compounds of heavy metals contained in electroplating sludge. Ceramic materials based on the developed charge composition can be used for producing items for external cladding for buildings and structures.

Preparation and Mechanical Performance of Supplementary Cementing Materials Cementitious by Electroplating Sludge

2020 ◽  
Vol 837 ◽  
pp. 133-138
Author(s):  
Chang Sen Zhang ◽  
Xue Su Gu ◽  
Jie Gao ◽  
Yu Yang ◽  
Bao Gui Zhu
Keyword(s):  
Heavy Metals ◽  
Compressive Strength ◽  
Calcium Hydroxide ◽  
Mechanical Performance ◽  
Raw Materials ◽  
Steel Slag ◽  
Hydration Products ◽  
Cement Pastes ◽  
Supplementary Cementing Materials ◽  
Electroplating Sludge

Preparation, microstructure and mechanical performance of novel supplementary cementing materials prepared with electroplating sludge and steel slag as raw materials were studied. It was found that the electroplating sludge could be mixed with steel slag at appropriate ratios to make SCMs that posse certain compressive strength. The results shows that the supplementary cementing materials prepared in this article can increase the compressive strengths of cement when it substitutes for cement in appropriate proportion. The microstructure and hydration products of cement with SCMs were examined by XRD and SEM. The results indicated that the content of calcium hydroxide formed in paste significantly reduced and Aft increased, as the content of the supplementary cementing materials increased. In addition, the heavy metals elements in the electroplating sludge could be effective cured in cement pastes and reduced the pollution to the environment.

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