Effects of sulfate on heavy metal release from iron corrosion scales in drinking water distribution system

Sun, Huifang; Shi, Baoyou; Yang, Fan; Wang, Dongsheng

doi:10.1016/j.watres.2017.02.021

Cited by 116 publications

(68 citation statements)

References 34 publications

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“…e sulfate (SO 4 2− ) concentration in the sodium alkali (NaOH) FGD wastewater is generally more than 10,000 mg/L; the maximum can be greater than 20,000 mg/L. In addition, the wastewater also contains a large number of inorganic anions (NO 3 − , Cl − , and F − ) and heavy metal ions (Mg 2+ and Mn 2+ ).…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the wastewater also contains a large number of inorganic anions (NO 3 − , Cl − , and F − ) and heavy metal ions (Mg 2+ and Mn 2+ ). ough SO 4 2− is a common and nontoxic component of various types of water bodies, high concentrations of SO 4 2− in the water can cause a series of serious environmental problems, leading to water mineralization, metal corrosion, pipes and equipment scaling, toxic hydrogen sulfide release, and disruption in the balance of the natural sulfur cycle [2][3][4][5]. In addition, high concentrations of SO 4 2− (>600 mg/L) in the water can cause laxative effects in mammals [6].…”

Section: Introductionmentioning

confidence: 99%

“…ough SO 4 2− is a common and nontoxic component of various types of water bodies, high concentrations of SO 4 2− in the water can cause a series of serious environmental problems, leading to water mineralization, metal corrosion, pipes and equipment scaling, toxic hydrogen sulfide release, and disruption in the balance of the natural sulfur cycle [2][3][4][5]. In addition, high concentrations of SO 4 2− (>600 mg/L) in the water can cause laxative effects in mammals [6]. Hence, to protect the environment, the SO 4 2− concentration in the industrial effluents is set ranging from 250 mg/L to 500 mg/L in many countries [6]; for example, the sulfate ion concentration limit values in the industrial recycling water and surface water are all set as 250 mg/L in China.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, high concentrations of SO 4 2− (>600 mg/L) in the water can cause laxative effects in mammals [6]. Hence, to protect the environment, the SO 4 2− concentration in the industrial effluents is set ranging from 250 mg/L to 500 mg/L in many countries [6]; for example, the sulfate ion concentration limit values in the industrial recycling water and surface water are all set as 250 mg/L in China. Hence, in order to meet the discharge standard or achieve the recycling of desulfurization wastewater, it is necessary to remove the sulfate ion in the sodium alkali FGD wastewater.…”

Section: Introductionmentioning

confidence: 99%

“…However, these methods are not very suitable for the treatment of high concentration of SO 4 2− wastewater, except the chemical precipitation method. e chemical precipitation method mainly includes lime precipitation [6], barium chloride precipitation [17,18], and ettringite (Ca 6 Al 2 (OH) 12 (SO 4 ) 3 · 26H 2 O) precipitation methods [19].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Removal of High-Concentration Sulfate Ions from the Sodium Alkali FGD Wastewater Using Ettringite Precipitation Method: Factor Assessment, Feasibility, and Prospect

Fang

Tang

Chen

et al. 2018

Journal of Chemistry

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e feasibility of removal of sulfate ions from the sodium alkali FGD wastewater using the ettringite precipitation method was evaluated. Factors affecting the removal of sulfate ions, such as NaAlO 2 dosage, Ca(OH) 2 dosage, solution temperature, anions (Cl − , NO 3 − and F − ), and heavy metal ions (Mg 2+ and Mn 2+ ), were investigated, and the optimal experimental conditions for the removal of sulfate ions were determined. Experimental results indicate that the ettringite precipitation method can effectively remove SO 4 2− with removal efficiency of more than 98%. All the investigated factors have influences on the removal of sulfate ions, and among them, the dosage of reagents, solution temperature, and fluoride ions have the strongest influence. In addition, the method can effectively synergistically remove F − and heavy metal ions with removal efficiencies of more than 90% and 99%, respectively; meanwhile, Cl − and NO 3 − also can be removed minimally by the method. e result of actual wastewater treatment shows that the method is feasible for treating high-concentration sulfate wastewater. e ettringite precipitation method has the potential to be a commercial application in the future.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Removal of High-Concentration Sulfate Ions from the Sodium Alkali FGD Wastewater Using Ettringite Precipitation Method: Factor Assessment, Feasibility, and Prospect

Fang

Tang

Chen

et al. 2018

Journal of Chemistry

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Solid Phase Synthesis Catalyzed by Microwave and Ultrasound Irradiation

Hameed,

Amr,

Emad

et al. 2024

Green Chemical Synthesis With Microwaves and Ultrasound

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Evaluation method for heavy metal pollution control effect in rural areas of northern Anhui Province

Chen

Deng

2020

Asia-Pacific J Chem Eng

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Soil is an important part of human survival, and people's lives cannot be separated from soil. At present, soil pollution in China is becoming more and more serious, especially heavy metal pollution. Based on this, a method for evaluating the effect of heavy metal pollution treatment in rural areas in northern Anhui was proposed. Taking Liulangguan Lane, Nanling, and Dapu in the south of Anhui Province as the study area, the PLSR model was used to collect soil heavy metal content in the area as sample data. The fuzzy comprehensive evaluation method was used to analyze the effect of heavy metal pollution control in rural areas. The results show that most of the soil quality evaluation grades are grades 2 and 3 and need to be retreated. And the evaluation accuracy of the method is always greater than 0.9500, and the evaluation results are more credible.

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Effects of sulfate on heavy metal release from iron corrosion scales in drinking water distribution system

Cited by 116 publications

References 34 publications

Removal of High-Concentration Sulfate Ions from the Sodium Alkali FGD Wastewater Using Ettringite Precipitation Method: Factor Assessment, Feasibility, and Prospect

Removal of High-Concentration Sulfate Ions from the Sodium Alkali FGD Wastewater Using Ettringite Precipitation Method: Factor Assessment, Feasibility, and Prospect

Solid Phase Synthesis Catalyzed by Microwave and Ultrasound Irradiation

Evaluation method for heavy metal pollution control effect in rural areas of northern Anhui Province

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