Effective treatment of acid mine drainage by constructed wetland column: Coupling walnut shell and its biochar product as the substrates

Chang, Junjun; Deng, Shengjiong; Li, Xuan; Li, Yutong; Chen, Jinquan; Duan, Changqun

doi:10.1016/j.jwpe.2022.103116

Cited by 10 publications

(4 citation statements)

References 31 publications

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“…The cumulative DOC release from biochar was in the order of 8.5 mg/g. One study measured DOC release from rice husk biochar at 10 mg/g over 6 days, which is similar to the amount released from biochar used in this experiment [19].…”

Section: Effect Of Constructed Wetland Wastewater Treatment With Diff...mentioning

confidence: 86%

Study on the Effectiveness of Constructed Wetlands in Purifying Polluted Water from Rivers and Greenhouse Gas Emissions

Zhu,

Sun,

Zhang

et al. 2023

SPEE

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In order to investigate the effect of different substrates of constructed wetlands on the purification of polluted water in rivers and their greenhouse gas emissions, this study designed three small-scale constructed wetland experimental systems with traditional gravel (CW-G), volcanic rock (CW-V) and biomass carbon (CW-B) as filler substrates to investigate the effect of different constructed wetland systems on the removal of COD and nitrogen pollutants and to further analyse their effect on greenhouse gas emissions. The results showed that the removal rates of organic matter in all three groups of constructed wetlands reached over 90%. and 49.29% to 58.71%, respectively, with CW-V and CW-B significantly improving the removal of NH4 + -N and NO3− -N compared to CW-G (P < 0.05). A comparison of greenhouse gas emissions reveals that although CW-B resulted in the highest N2O emissions due to its better removal of NO3− -N, its share in nitrogen removal was still the smallest. In addition, the rapid consumption of organic matter in the influent water and the oxidation of some CH4 to CO2 resulted in no detectable CH4 in any of the three groups of constructed wetlands. The results of this study show that the differences in treatment effects and greenhouse gas emissions between the three types of substrate constructed wetlands are significant, and this study can provide some scientific reference for the construction and operation of wetlands for the purification of polluted water bodies in rivers.

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Section: Effect Of Constructed Wetland Wastewater Treatment With Diff...mentioning

confidence: 86%

Study on the Effectiveness of Constructed Wetlands in Purifying Polluted Water from Rivers and Greenhouse Gas Emissions

Zhu,

Sun,

Zhang

et al. 2023

SPEE

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“…AMD is a significant global environmental challenge due to its high levels of toxic heavy metals has taken priority for nations and organizations seeking solutions by using biochar for remediation [77] , [78] . Biochar is an effective adsorbent for the removal of heavy metals from AMD.…”

Section: Bibliometric Analysismentioning

confidence: 99%

Utilization of biochar for remediation of heavy metals in aqueous environments: A review and bibliometric analysis

Phiri,

Moja,

Nkambule

et al. 2024

Heliyon

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“…With the use of CWs, wastewater remediation can be conducted more affordably, sustainably, and easily, with a high rate of nutrient recovery, and minimal maintenance/operation costs [16][17][18][19] in an eco-friendly way [20,21]. CWs are capable of treating wastewater from different sources such as municipal, livestock, industrial, agricultural, domestic, acid-mine waste, storm run-off, and landfill leachate [22][23][24][25][26][27][28][29]. Numerous harmful chemicals, including antibiotics, heavy metals, landfill leachate, textile dyes, pesticides, hormones, petroleum, and explosives are removed or degraded by the phytoremediation technique [30].…”

Section: Introductionmentioning

confidence: 99%

Constructed Wetlands for the Wastewater Treatment: A Review of Italian Case Studies

Retta,

Coppola,

Ciniglia

et al. 2023

Applied Sciences

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Wastewater is one of the major sources of pollution in aquatic environments and its treatment is crucial to reduce risk and increase clean water availability. Constructed wetlands (CWs) are one of the most efficient, environmentally friendly, and less costly techniques for this purpose. This review aims to assess the state of the art on the use of CWs in removing environmental pollutants from wastewater in Italy in order to improve the current situation and provide background for future research and development work. To evaluate the CWs performances, 76 research works (2001–2023) were examined, and the parameters considered were the type of wastewater treated, pollutants removed, macrophytes, and the kinds of CWs utilized. The pollutant removal efficiencies of all CWs reviewed showed remarkable potential, even though there are biotic and abiotic factor-driven performance variations among them. The number of articles published showed an increasing trend over time, indicating the research progress of the application of CWs in wastewater treatment. This review highlighted that most of the investigated case studies referred to pilot CWs. This finding suggests that much more large-scale experiments should be conducted in the future to confirm the potential of CWs in eliminating pollutants from wastewater.

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Effective treatment of acid mine drainage by constructed wetland column: Coupling walnut shell and its biochar product as the substrates

Cited by 10 publications

References 31 publications

Study on the Effectiveness of Constructed Wetlands in Purifying Polluted Water from Rivers and Greenhouse Gas Emissions

Study on the Effectiveness of Constructed Wetlands in Purifying Polluted Water from Rivers and Greenhouse Gas Emissions

Utilization of biochar for remediation of heavy metals in aqueous environments: A review and bibliometric analysis

Constructed Wetlands for the Wastewater Treatment: A Review of Italian Case Studies

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