High sulfide production induced by algae decomposition and its potential stimulation to phosphorus mobility in sediment

Zhao, Yingdong; Zhang, Zhongqian; Wang, Guoxiang; Li, Xiaojun; Jie, Ma; Chen, Shuang; Deng, Huan; Onnis‐Hayden, Annalisa

doi:10.1016/j.scitotenv.2018.09.010

Cited by 66 publications

(20 citation statements)

References 44 publications

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“…The SRRs of both lakes have been previously calculated following alternative approaches, which is consistent with the differences we observed (Kleeberg 1998;2013). In addition to sulphate reduction, mineralisation of settling organic matter can be a source of sulphide (Urban 1994;Zhao et al 2019).…”

Section: Sulphur Competition With Phosphorus For Dosed Iron: Mechanismssupporting

confidence: 84%

Sulphate reduction determines the long-term effect of iron amendments on phosphorus retention in lake sediments

Heinrich

Dietel²,

Hupfer

2021

J Soils Sediments

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Purpose This field study aimed to guide the planning of iron amendments for phosphorus retention by investigating the long-term fate of iron added to two urban lakes (Plötzensee and Groß Glienicker See) in Berlin, Germany. The contributions of iron dosing to improve lake status as well as the relevance of competing processes for management success were evaluated. Methods Sediment stratigraphy, as well as occurrence of iron minerals, and fluxes between water and sediment were examined using geochemical analyses (i.e. element composition, sequential extraction, X-ray diffraction, and pore water analyses). A one-box lake model was used to relate these fluxes to monitoring data from the water column and to sediment inventories. Results In both lakes, the added iron was preserved in the sediment. Whereas phosphorus retention increased following the addition of iron to Groß Glienicker See, sulphur was retained by the excess iron in Plötzensee. This contrasting effect is attributed to significantly different sulphate reduction rates in two lakes (Wilcoxon rank sum test: W = 25, p = 0.008). According to the one-box model, sulphate reduction explained both the decrease in measured sulphate concentrations after iron application as well as the observed increase in sulphur deposition in the sediments. Conclusion Management interventions involving iron amendments to enhance phosphorus retention must consider the competing process of iron sulphide formation during the entire management plan period, and additional iron may need to be applied to account for this effect.

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Section: Sulphur Competition With Phosphorus For Dosed Iron: Mechanismssupporting

confidence: 84%

Sulphate reduction determines the long-term effect of iron amendments on phosphorus retention in lake sediments

Heinrich

Dietel²,

Hupfer

2021

J Soils Sediments

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“…Our results showed that the net CH 4 production (indicating activities of methanogens) was 16.0–44.4% (average 30.5%) higher following algal biomass addition (Figure S10C). In contrast, the levels of both dissolved sulfate (indicating the activities of SRB) and Fe (indicating the activities of FeRB , ) showed no difference between the “Control” and “Algae” treatments ( p > 0.05, Figure S10A,B). These results probably indicated that the activities of methanogens but not SRB and FeRB were enhanced by AOM input.…”

Section: Resultsmentioning

confidence: 95%

“…20 Aliquots of filtered water were acidified with trace metal grade HNO 3 and then analyzed for the changes in dissolved Fe levels between the "Control" groups and "Algae" treatments (indicating iron reduction 40,41 ) by ICP−MS. 42 Other aliquots were analyzed for the changes in dissolved sulfate levels (indicating sulfate reduction 43 ) using a Dionex ICS1100 (Thermo Fisher Scientific, USA). The levels of MeHg in water were determined.…”

Section: Methodsmentioning

confidence: 99%

Algal Organic Matter Drives Methanogen-Mediated Methylmercury Production in Water from Eutrophic Shallow Lakes

Lei

Zhang

Zhu

et al. 2021

Environ. Sci. Technol.

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Algal blooms bring massive amounts of algal organic matter (AOM) into eutrophic lakes, which influences microbial methylmercury (MeHg) production. However, because of the complexity of AOM and its dynamic changes during algal decomposition, the relationship between AOM and microbial Hg methylators remains poorly understood, which hinders predicting MeHg production and its bioaccumulation in eutrophic shallow lakes. To address that, we explored the impacts of AOM on microbial Hg methylators and MeHg production by characterizing dissolved organic matter with Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) and three-dimensional excitation-emission matrix (3D-EEM) fluorescence spectroscopy and quantifying the microbial Hg methylation gene hgcA. We first reveal that the predominance of methanogens, facilitated by eutrophication-induced carbon input, could drive MeHg production in lake water. Specifically, bioavailable components of AOM (i.e., CHONs such as aromatic proteins and soluble microbial byproduct-like materials) increased the abundances (Archaea-hgcA gene: 438–2240% higher) and activities (net CH4 production: 16.0–44.4% higher) of Archaea (e.g., methanogens). These in turn led to enhanced dissolved MeHg levels (24.3–15,918% higher) for three major eutrophic shallow lakes in China. Nevertheless, our model results indicate that AOM-facilitated MeHg production could be offset by AOM-induced MeHg biodilution under eutrophication. Our study would help reduce uncertainties in predicting MeHg production, providing a basis for mitigating the MeHg risk in eutrophic lakes.

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“…The redox potential (oxidation/ reduction potential, ORP) is positively correlated with DO; thus, a low ORP value can easily lead to further sedimentreducing conditions, which in turn is conducive to the accelerated growth of anaerobic bacteria (such as sulfate-reducing bacteria, SRB) and the bacterial reduction of sulfate (SO 4 2− ) in sediments (JØrgensen 2019; Zhang et al 2021a, b). H 2 S and other odorous gaseous sulfuric compounds produced by bacterial anaerobic respiration are the main causes of the odorous phenomenon observed in urban rivers (Liu et al 2017;Zhao et al 2019). Furthermore, the sediment-reducing conditions caused by a low DO and ORP can promote Fe/ Mn reduction and phosphorus (P) release, where P can be adsorbed onto Fe and Mn oxide-hydroxide particles (Fink et al 2016a, b, c;Gasparatos et al 2019;Franks et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Effect of remediation reagents on bacterial composition and ecological function in black-odorous water sediments

et al. 2022

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Black-odorous urban water bodies and sediments pose a serious environmental problem. In this study, we conducted microcosm batch experiments to investigate the effect of remediation reagents (magnesium hydroxide and calcium nitrate) on native bacterial communities and their ecological functions in the black-odorous sediment of urban water. The dominant phyla (Proteobacteria, Actinobacteria, Chloroflexi, and Planctomycetes) and classes (Alphaproteobacteria, Betaproteobacteria, and Gammaproteobacteria, Actinobacteria, Anaerolineae, and Planctomycetia) were determined under calcium nitrate and magnesium hydroxide treatments. Functional groups related to aerobic metabolism, including aerobic chemoheterotrophy, dark sulfide oxidation, and correlated dominant genera (Thiobacillus, Lysobacter, Gp16, and Gaiella) became more abundant under calcium nitrate treatment, whereas functional genes potentially involved in dissimilatory sulfate reduction became less abundant. The relative abundance of chloroplasts, fermentation, and correlated genera (Desulfomonile and unclassified Cyanobacteria) decreased under magnesium hydroxide treatment. Overall, these results indicated that calcium nitrate addition improved hypoxia-related reducing conditions in the sediment and promoted aerobic chemoheterotrophy.

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High sulfide production induced by algae decomposition and its potential stimulation to phosphorus mobility in sediment

Cited by 66 publications

References 44 publications

Sulphate reduction determines the long-term effect of iron amendments on phosphorus retention in lake sediments

Sulphate reduction determines the long-term effect of iron amendments on phosphorus retention in lake sediments

Algal Organic Matter Drives Methanogen-Mediated Methylmercury Production in Water from Eutrophic Shallow Lakes

Effect of remediation reagents on bacterial composition and ecological function in black-odorous water sediments

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