Using Fenton Oxidation to Simultaneously Remove Different Estrogens from Cow Manure

Sun, Minxia; Xu, Defu; Ji, Yuefei; Liu, Juan; Ling, Wanting; Li, Shunyao; Chen, Mindong

doi:10.3390/ijerph13090917

Cited by 19 publications

(5 citation statements)

References 34 publications

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“…ARI-1 [ 63 ]. A Fenton oxidation method was investigated to simultaneously remove different estrogens including estriol, bisphenol A, diethylstilbestrol, estradiol, and ethinyl estradiol from cow manure [ 64 ]. However, more cost-effective and available techniques are still wanted in future.…”

Section: Resultsmentioning

confidence: 99%

Contamination and Risk Assessment of Estrogens in Livestock Manure: A Case Study in Jiangsu Province, China

Xiang

et al. 2018

IJERPH

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This study investigated the occurrence and contamination risk of estrogens in livestock manure in Jiangsu Province, China. Four estrogens—estriol (E3), 17β-estradiol (17β-E2), bisphenol A (BPA), and 17α-ethinyloestradiol (EE2)—were detected in livestock manure from hens, ducks, swine, and cows. The respective mean concentrations of each estrogen found in these manures were 289.8, 334.1, 330.3, and 33.7 μg/kg for E3; 38.6, 10.9, 52.9, and 38.8 μg/kg for 17β-E2; 63.6, 48.7, 51.9, and 11.7 μg/kg for BPA; and 14.3, 11.3, 25.1, and 21.8 μg/kg for EE2. Estrogens were most frequently detected at high concentrations in the manure of finishing pigs, followed by the manure of growing pigs and piglets. Estrogens can be partially degraded after banking up for seven days; yet, great quantities of estrogens remain in livestock manure. The total estradiol equivalent quantity (EEQt) estimated to be present in aquatic environments but originating from livestock waste was 10.5 ng/L, which was greater than the hazard baseline value (1 ng/L) and also higher than the proposed lowest observable effect concentration (10 ng/L) of E2 in aquatic environments. The results of our study demonstrate that livestock waste is an important source of estrogens, which may potentially affect the hormonal metabolism of aquatic organisms.

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Section: Resultsmentioning

confidence: 99%

Contamination and Risk Assessment of Estrogens in Livestock Manure: A Case Study in Jiangsu Province, China

Xiang

et al. 2018

IJERPH

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“…With the stirrer opened, 0.5 mol/L of citric acid adjusted pH to 3.0-4.0, distilled water, and Fenton reagent were slowly added to the Fenton oxidation system to make a final H 2 O 2 concentration of 10.5 mmol/g slurry in the manure, and a Fe 2+ /H 2 O 2 molar ratio of 0.067 mol/mol, and the liquid to solids ratio of 5 g/g dry weight. These parameters were determined as cited [21]. In this study, there was little filtrate due to the higher water-absorbing quality of dry manure (7.17 g/g dry weight), which corresponded to Fei et al [36]; therefore, we did not do a solid-liquid separation.…”

Section: Manurementioning

confidence: 86%

“…As an environmentally-friendly technology, some laboratory studies have shown that the Fenton process could remove estrogens and antibiotics in manure [21][22][23][24]. Sun et al [21] reported that 97.8% of estradiol (E2) was removed in cow manure. Uslu and Balcioglu [22] found that the Fenton process in animal waste could remove up to 98.3% of oxytetracycline and 97.8% of sulfamethazine.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Removal of Estrogens and Antibiotics from Livestock Manure Using Fenton Oxidation Technique

et al. 2019

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The presence of estrogens and antibiotics in animal manure has raised considerable attention regarding their potential risks in both the soil system and human health. This study investigated the removal of estrogens (estriol (E3), bisphenol A (BPA), estradiol (17β-E2), ethinyl estradiol (EE2)), and antibiotic (sulfadimethoxine (SDM)) in livestock manure using the Fenton oxidation process. Based on the removal efficiency of estrogens and antibiotics, the optimal conditions of the Fenton oxidation process were as follows: an H 2 O 2 dosage of 10.5 mmol/g slurry, an Fe 2+ /H 2 O 2 molar ratio of 0.067 mol/mol, a stirring rate of 100 rpm, the feeding of an identical amount of H 2 O 2 in two steps (at 0 and 15 min), a manure/reactor ratio of 1:25, and a reaction time of 100 min. Under these conditions, the removal efficiencies of E3, BPA, 17β-E2, EE2, and SDM in cow manure were 72.1%, 88.2%, 89.4%, 73.3%, and 99.7%, respectively. In the above-mentioned optimal conditions, the simultaneous removal of estrogens and antibiotic in different manure conditions led to the removal of above 70% of targeted contaminants, except for E3 in swine and chicken manure in all the manure. The findings demonstrate the useful application of the Fenton oxidation process in the concomitant removal of antibiotics and estrogens from animal manure, which reduces the associated risks to human health and environmental safety.

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“…This can lead to contamination of soil, surface water, and groundwater with EDCs [ 19 – 22 ]. While recent techniques were proposed for substantially decreasing estrogens levels in livestock manure [ 63 , 64 ], more available techniques are still on a high demand.…”

Section: Discussionmentioning

confidence: 99%

Uterine Cancer Mortality in White and African American Females in Southeastern North Carolina

Kravchenko

Akushevich

Rhew

et al. 2020

Journal of Environmental and Public Health

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The residents of southeastern North Carolina (NC) are exposed to multiple socioeconomic and environmental risk factors and have higher mortality rates for a number of diseases. Uterine cancer mortality is known to vary dramatically by race, so we analyzed uterine cancer mortality in populations defined by zip codes in this area to investigate the contributions of various environmental risk factors to race-specific disease patterns. Methods. Zip code specific mortality and hospital admissions for uterine cancer from 2007 to 2013 were analyzed using the NC State Center for Health Statistics data and the Inpatient Database of the Healthcare Cost and Utilization Project datafiles, respectively. Results were adjusted for age, income, education, health insurance coverage, prevalence of current smokers, and density of primary care providers. Results. Uterine cancer mortality rates were generally higher in African American (32.5/100,000, 95% CI = 18.9–46.1) compared to White (19.6/100,000, 95% CI = 12.3–26.9) females. Odds ratios (ORs) of uterine cancer death were higher in White females (OR = 2.27, p<0.0001) residing within zip codes with hog concentrated animal feeding operations (CAFOs) (hog density >215 hogs/km2) than in White females residing in non-CAFO communities. African American females living near CAFOs had less pronounced increase of uterine cancer death (OR = 1.08, p=0.7657). Conclusion. White females living in adjacent to hog CAFOs areas of southeastern NC have lower rates of mortality from uterine cancer than African American females, but they have higher odds of death compared to their counterparts living in other NC areas. African American females living near CAFOs also have modest increases from their high baseline mortality. While the observed associations do not prove a causation, improving access to screening and medical care is important to mitigate this health issues in southeastern NC.

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Using Fenton Oxidation to Simultaneously Remove Different Estrogens from Cow Manure

Cited by 19 publications

References 34 publications

Contamination and Risk Assessment of Estrogens in Livestock Manure: A Case Study in Jiangsu Province, China

Contamination and Risk Assessment of Estrogens in Livestock Manure: A Case Study in Jiangsu Province, China

Simultaneous Removal of Estrogens and Antibiotics from Livestock Manure Using Fenton Oxidation Technique

Uterine Cancer Mortality in White and African American Females in Southeastern North Carolina

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