Various methods of driving the insoluble lead-sulfate back into solution have been proposed and tried, all based on over-voltage. One rather intrusive method is to replace the sulfuric acid electrolyte with a greatly weakened version and then apply an over-voltage for a prolonged period of time before restoring a full strength electrolyte. A ...
Multiple requests from the same IP address are counted as one view. In this study, we present a low-cost and simple method to treat spent lead–acid battery wastewater using quicklime and slaked lime. The sulfate and lead were successfully removed using the precipitation method.
Various methods of driving the insoluble lead-sulfate back into solution have been proposed and tried, all based on over-voltage. One rather intrusive method is to replace the sulfuric acid electrolyte with a greatly weakened version and then apply an over-voltage for a prolonged period of time before restoring a full strength electrolyte.
The precipitation method is used to efficiently remove sulfate and lead from the wastewater. In addition, carbon dioxide gas was bubbled into the reaction to increase lead removal efficiencies as well as reduce the pH value to about 7 to meet relevant standards of environmental regulations.
Author to whom correspondence should be addressed. In this study, we present a low-cost and simple method to treat spent lead–acid battery wastewater using quicklime and slaked lime. The sulfate and lead were successfully removed using the precipitation method.
In this work, the sulfate and lead were successfully treated by using quicklime and slaked lime through a precipitation method. For both quicklime and slaked lime samples, the sulfate SO 42- removal efficiencies were more than 97% and the lead removal efficiencies were 49% for quicklime and 53% for slaked lime.
The removal efficiency of lead was increased after using a carbonation step with 68% for quicklime and 69% for slaked lime. The carbonation process not only enhanced the lead removal efficiency in the battery wastewater but also reduced pH to meet requirements of environmental regulations.
Various methods of driving the insoluble lead-sulfate back into solution have been proposed and tried, all based on over-voltage. One rather intrusive method is to replace the sulfuric acid electrolyte with a greatly weakened version and then apply an over-voltage for a prolonged period of time before restoring a full strength electrolyte. A ...
A long, slow charging cycle with low current can remove sulfation in lead acid batteries. This method breaks down lead sulfate crystals. It helps restore battery functionality …
Spent electrolyte from lead-acid battery contains high concentrations of sulfate acid and heavy metals; therefore without proper handling, they might cause severe environmental pollution. A relatively high concentration of sulfate ions (approximately 3000 mg/L) and heavy metals still exists in the effluent even after precipitation with slaked ...
A process that involves the reduction of sulfate to sulfide with sulfate-reducing bacteria and precipitation of the excessive sulfide with Fe (OH)2 was adopted to dispose of the effluent after...
When your lead-acid batteries last longer, you save time and money – and avoid headaches. Today''s blog post shows you how to significantly extend battery life. Read More. AGM Batteries for Boating and Recreational Vehicles (RVs) Marine Batteries | AGM Batteries. You can''t risk battery failure on the water – or on the road. Keep reading for the basics about easy-to-use …
Multicomponent lead compounds, including lead (Pb), lead oxide (PbO), lead dioxide (PbO2), and lead sulfate (PbSO4), in spent lead–acid batteries (LABs), if not properly disposed of and recycled, will cause serious pollution and damage to the ecological environment. Pyrometallurgical smelting performed above 1000 °C often incurs high energy consumption …
In this study, we present a low-cost and simple method to treat spent lead–acid battery wastewater using quicklime and slaked lime. The sulfate and lead were successfully removed using...
This paper presents improvement in lead (Pb) recovery and sulphate removal from used Pb acid battery (ULAB) through Electrokinetic technique, a process aimed to eliminate environmental pollution that arises due to emission of gases and metal particles from the existing high temperature pyrometallurgical process. Two different cell ...
This invention seeks to provide a novel method for removing membranous lead sulfate deposited on electrodes of a lead-acid battery by dissolving the lead sulfate into fine particles...
In this study, we present a low-cost and simple method to treat spent lead–acid battery wastewater using quicklime and slaked lime. The sulfate and lead were successfully …
In this paper, a novel approach to recover PbO from lead pastes of spent lead acid batteries by desulfurization and crystallization in sodium hydroxide (NaOH) solution after sulfation was proposed. In the lead pastes, PbO can react with sulfuric acid easily to generate PbSO 4, so that the contents of PbO have little impact on the sulfation.
In this study, we present a low-cost and simple method to treat spent lead–acid battery wastewater using quicklime and slaked lime. The sulfate and lead were successfully removed using the precipitation method. The structure of quicklime, slaked lime, and resultant residues were measured by X-ray diffraction.
In this study, we present a low-cost and simple method to treat spent lead–acid battery wastewater using quicklime and slaked lime. The sulfate and lead were successfully removed using the precipitation method. The structure of quicklime, slaked lime, and resultant …
Spent electrolyte from lead-acid battery contains high concentrations of sulfate acid and heavy metals; therefore without proper handling, they might cause severe environmental pollution. A relatively high concentration of sulfate ions (approximately 3000 mg/L) and heavy metals still exists in the effluent even after precipitation with slaked lime and carbonation …
A long, slow charging cycle with low current can remove sulfation in lead acid batteries. This method breaks down lead sulfate crystals. It helps restore battery functionality by allowing these crystals to blend with the electrolyte. As a result, the battery regains its charge capacity and overall performance.
A process that involves the reduction of sulfate to sulfide with sulfate-reducing bacteria and precipitation of the excessive sulfide with Fe (OH)2 was adopted to dispose of the effluent after...
Spent electrolyte from lead-acid battery contains high concentrations of sulfate acid and heavy metals; therefore without proper handling, they might cause severe environmental pollution. A relatively high …
lead–acid battery wastewater sample was generated from a lead–acid battery company and kept in plastic bottles. The battery company had no recycling system; therefore, the sulfuric acid from the
In this paper, a novel approach to recover PbO from lead pastes of spent lead acid batteries by desulfurization and crystallization in sodium hydroxide (NaOH) solution after …
In this study, we present a low-cost and simple method to treat spent lead–acid battery wastewater using quicklime and slaked lime. The sulfate and lead were successfully removed using...
Spent electrolyte from lead-acid battery contains high concentrations of sulfate acid and heavy metals; therefore without proper handling, they might cause severe environmental pollution.
Keywords: sustainable; battery wastewater; sulfate removal; lead removal 1. Introduction Currently, lead–acid battery is an important industry in the world and has been commonly employed as secondary sources of energy due to its low cost, high energy density, high specific energy, high-rate discharge capability, and safety [1,2]. The lead–acid battery is generally …
In this study, we present a low-cost and simple method to treat spent lead–acid battery wastewater using quicklime and slaked lime. The sulfate and lead were successfully removed using the precipitation method. The structure of quicklime, slaked lime, and resultant residues were measured by X-ray diffraction. The obtained results show that the sulfate …
The lead sulfate first forms in a finely divided, amorphous state and easily reverts to lead, lead dioxide, and sulfuric acid when the battery recharges. As batteries cycle through numerous discharges and charges, some lead sulfate does not recombine into electrolyte and slowly converts into a stable crystalline form that no longer dissolves on recharging. Thus, not all the …
Sulfation is a natural chemical process that takes place, if lead-acid battery plates are exposed to air, or the specific gravity goes below 1.225. Sulfation occurs when soft lead sulfate, which is a combination of lead and sulfur, cystalizes into hard lead sulphate. It results in the battery cells being unable to ...
In this study, we present a low-cost and simple method to treat spent lead–acid battery wastewater using quicklime and slaked lime. The sulfate and lead were successfully removed using the precipitation method. The structure of quicklime, slaked lime, and resultant residues were measured by X-ray diffraction. The obtained results show that ...
After a long time of development, the technology of lead-acid battery has already matured, 1,2 lead-acid battery is widely used in automobile 3 power plant energy storage and other electric power fields and there is no better product can replace it in the short term. 4 At the same time, lead-acid battery is the best product for resource recycling in the battery …
Various methods of driving the insoluble lead-sulfate back into solution have been proposed and tried, all based on over-voltage. One rather intrusive method is to replace the sulfuric acid …
This paper presents improvement in lead (Pb) recovery and sulphate removal from used Pb acid battery (ULAB) through Electrokinetic technique, a process aimed to …
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