Long-term effect of heavy metals Cr(III), Zn(II), Cd(II), Cu(II), Ni(II), Pb(II) on the anammox process performance

Gutwiński, P.; Cema, Grzegorz; Ziembińska-Buczyńska, Aleksandra; Wyszyńska, Karolina; Surmacz-Górska, Joanna

doi:10.1016/j.jwpe.2020.101668

Cited by 36 publications

(9 citation statements)

References 44 publications

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“…These metals, in varying concentrations of (mg/L), are said to inhibit the anaerobic process. On other hand, inhibitory substances studied for anaerobic digestion processes have always focused on the decreasing toxicity of the heavy metals such as Ni > Ca > Pb > Cr > Zn with iron, and are considered more beneficial than detrimental because of its mediating effects on sulfide toxicity [ 21 , 22 ]. Chollom et al [ 14 ] characterized influent and effluent samples from a local South African slaughterhouse wastewater treatment plant.…”

Section: Discussionmentioning

confidence: 99%

Evaluating the Biodegradation of Veterinary Antibiotics Using Kinetics Model and Response Surface Methodology

et al. 2022

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The inappropriate use and indiscriminate disposal of antibiotics has become a menace worldwide. The incomplete removal of these contaminants from wastewater treatment plants has also contributed to this. This study presents the biodegradation of two veterinary antibiotics; ciprofloxacin (CIP) and enrofloxacin (ENRO). Kinetics models were explored to understand the dynamics of biodegradation in an anaerobic digestion process. This was carried out in batch reactors under various operating conditions: pH, organic loading rate (OLR), and antibiotic concentration. The influence of the parameters was investigated using a response surface methodology (RSM) based on the Box–Behnken experimental design of 15 runs. The data obtained were fitted on a polynomial function model. OLR and pH exhibited a synergistic and antagonistic effect in the response models developed, with a high correlation regression coefficient (R2; 0.9834–0.9875) close to 1 at a 95% confidence level. The optimum conditions obtained from the RSM numerical optimization were pH (6), OLR (2 kgCOD·m−3·days−1), and an antibiotic concentration of 75%, which gave the removal of CIP, ENRO, and COD, respectively, as 80%, 83%, and 73% at a desirability function of 85%. The kinetics study shows that the biodegradation of antibiotics was well fitted on a first-order model (R2; 0.9885–0.9978) with rate constants ranging from 0.0695 to 0.96 days−1.

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Section: Discussionmentioning

confidence: 99%

Evaluating the Biodegradation of Veterinary Antibiotics Using Kinetics Model and Response Surface Methodology

et al. 2022

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“…Chromium levels in well and river water are zero, and differ significantly from those in borehole water. At low doses, chromium (III) is an essential nutrient for humans since it plays an indispensable role in carbohydrate metabolism as an insulin activator [38,39]. Its deficiency can cause heart problems, metabolic disturbances and diabetes (interruption of sugar metabolism).…”

Section: Chromiummentioning

confidence: 99%

“…Copper is an essential element in humans and animals (trace element), involved in many metabolic pathways, including hemoglobin formation and neutrophil maturation. In addition, it is a specific co-factor of many enzymes and structural metallo-proteins [38]. However, excess copper produces free radicals responsible for cellular damage to DNA and organelles such as mitochondria or lysosomes [42].…”

Section: Coppermentioning

confidence: 99%

Evaluation of Heavy Metals in Drinking Water Resources in the Department of Nyan, Province of Logone Oriental in Chad

Nambatingar¹,

Theophile²,

Mianpeureum³

2021

AJAC

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The present research work was carried out in the Department of Nyan, Province of Logone Oriental. It allowed the quantification of heavy metal contents in well, borehole and river water intended for human consumption. Samples from these water sources were collected and submitted for laboratory analysis. Structural quality indicators such as pH, temperature, electrical conductivity, turbidity, dissolved oxygen and sulphate ions were measured first. The sample was acidified and the measurement is then performed on the metals, i.e. barium, calcium, iron, magnesium, manganese, copper, chromium, aluminium, lead, strontium, tin, zirconium and titanium. The results of the quality indicators showed that well and borehole waters have an acidic pH; their average measured values are 5.34±0.24 and 5.48±0.15 respectively. Well water and that of rivers have high turbidity values averaging 43.40±1.21 NTU and 47.56±1.5 NTU respectively. With respect to metals, some have values above the WHO drinking water standards. These include iron, which has high values in well water (7.890±0.016 mg/L) and river water (0.866±0.003 mg/L), manganese in well water (0.093±0.001 mg/L), aluminum in well water (5.614±0.009 mg/L) and river water (1.211±0.008 mg/L). Based on these results, consumption of these water sources would expose communities to mild or chronic health risks.

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“…Compared with traditional processes of nitrogen removal, the anammox process is more environmentally friendly and economical, making it suitable for wastewater treatment with high ammonia. However, anammox bacteria have a low growth rate (0.065–0.33 day −1 ) 2 and are sensitive to various environmental perturbations, e.g., metals 3 , 4 , antibiotics 5 , 6 , dissolved oxygen 7 , 8 and sulfides 9 . Thus, the application of anammox bacteria in wastewater treatment is limited.…”

Section: Introductionmentioning

confidence: 99%

“…Gutwinski et al 3 investigated the effects of different mixed heavy metals on the anammox process performance during long-term experiments, and pointed out the mixture of Zn(II), Cu(II), and Ni(II) at concentrations of 0.8, 0.075, and 0.04 mg/L caused a rapid inhibition in the anammox process. Wu et al 21 found an anammox system could maintain a superior performance at 10 mg/L Ni(II) during a long operation, and Ni(II) had a greater impact on the microbial community composition.…”

Section: Introductionmentioning

confidence: 99%

Short-term responses of the anammox process to Ni(II): nitrogen removal, mechanisms and inhibition recovery

Zhao

Sun

et al. 2022

Sci Rep

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Anaerobic ammonia oxidizing (anammox) has already been recognized as an innovative and economical nitrogen removal technology. However, the effect of heavy metals on anammox bacteria in aquatic ecosystem remains largely unknown. Ni(II) is a common kind of heavy metals detected in industrial wastewater and municipal sewage treatment plants. Hence, the responses of the anammox process to Ni(II) were studied here. The results showed that anammox was the dominant reaction with Ni(II) concentrations no more than 25 mg/L. 1 mg/L of Ni(II) addition promoted nitrogen removal by anammox. The higher the Ni(II) concentrations and longer exposure time, the more inhibition for anammox bacteria was gotten. The IC50 of Ni(II) to anammox was determined as 83.86 mg/L by an exponential regression equation. The inhibition of Ni(II) on anammox activity was mainly attributed to intracellular accumulation Ni(II) inhibition to HDH activity. Two times increase of IC50 after 4 times circles of domestication suggests multiple intermittent domestication can increase the tolerance of anammox bacteria to Ni(II). EDTA washing can eliminate the inhibition of anammox activity by Ni(II) with Ni(II) addition no more than 25 mg/L.

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Long-term effect of heavy metals Cr(III), Zn(II), Cd(II), Cu(II), Ni(II), Pb(II) on the anammox process performance

Cited by 36 publications

References 44 publications

Evaluating the Biodegradation of Veterinary Antibiotics Using Kinetics Model and Response Surface Methodology

Evaluating the Biodegradation of Veterinary Antibiotics Using Kinetics Model and Response Surface Methodology

Evaluation of Heavy Metals in Drinking Water Resources in the Department of Nyan, Province of Logone Oriental in Chad

Short-term responses of the anammox process to Ni(II): nitrogen removal, mechanisms and inhibition recovery

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