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Yoshinori Kanjo

Bio: Yoshinori Kanjo is an academic researcher from Osaka City University. The author has contributed to research in topics: Infectivity & Derivatization. The author has an hindex of 10, co-authored 33 publications receiving 1116 citations.

Papers
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Journal ArticleDOI
TL;DR: Removal of EDCs from three aspects is reviewed, that is, physical means, biodegradation, and chemical advanced oxidation (CAO).

677 citations

Journal ArticleDOI
TL;DR: Five out of 12 natural androgens, T, dihydrotestosterone (DHT), androsterone (AD), 5beta-androstanediol (beta-ADL), and androstenediol (ANL) were evaluated as the priority natural androgenes, which may exist in wastewater with high androgenic activities.

190 citations

Journal ArticleDOI
TL;DR: This review will summarize estrogenic activities or estrogenic potencies of phytoestrogens by different bioassays, and compare their urinary excretion rates to that of estrone, which suggests that most phy toestrogens may occur in municipal wastewaters.

125 citations

Journal ArticleDOI
TL;DR: An estrogen receptor (ER)/androgen receptor (AR) ligand competitive binding assay (ER/AR-binding assay) and chemical analyses were used to evaluate the endocrine disrupting chemicals (EDCs) behavior of two municipal wastewater treatment plants (WWTPs) (K and S).
Abstract: An estrogen receptor (ER)/androgen receptor (AR) ligand competitive binding assay (ER/AR-binding assay) and chemical analyses were used to evaluate the endocrine disrupting chemicals (EDCs) behavior of two municipal wastewater treatment plants (WWTPs) (K and S). In the influents, estrone (E1), androsterone (A), androstenedione (AD), BPA (bisphenol A), NP (nonylphenol) and daidzein (DZ) were detected in high amounts with subsequent 24 h-average concentrations of 350, 1000, 29, 1300, 3900, and 5700 ng/L in K-WWTP and of 310, 620, 59, 1600, 2600, and 8400 ng/L in S-WWTP. The estrogenic (androgenic) activity as 17β-estradiol (E2) equivalents (EEQ) or testosterone (Te) equivalents (TEQ) was consequently 620 ng E2/L (570 ng Te/L) and 580 ng E2/L (800 ng Te/L) for the two WWTPs. The removal eficiencies of the above mentioned sole target chemicals were 51%–100% for K-WWTP and 55.6%–100% for S-WWTP. The removal eficiencies of EEQ were about 73% for both WWTPs, while the removal eficiencies of TEQ were 62.1% for K-WWTP and 98.4% for S-WWTP. In addition, chemical-derived EEQ were about 1.2%–52.4% of those by ER-binding assay for K-WWTP and the corresponding ratios were 1.3%–83.3% for S-WWTP, while chemical derived TEQ were less than 3% of values measured by the AR-binding assay for both WWTPs.

47 citations

Journal ArticleDOI
TL;DR: 2,4-DNT inhibited its own biotransformation as well as the acetogenesis of ethanol and caused a decrease in the extent of formation of propionate with acetate production being favored.

42 citations


Cited by
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Journal ArticleDOI
TL;DR: This review provides a summary of the recent occurrence of micropollutants in the aquatic environment including sewage, surface water, groundwater and drinking water.

2,933 citations

Journal ArticleDOI
TL;DR: The classes, functions and the representatives of the frequently detected PPCPs in aquatic environments were summarized and suggestions are made for future study of P PCPs.

997 citations

Journal ArticleDOI
TL;DR: Among phthalates, DEHP is the most widely used, and quantified by the authors in wastewater, and the rate of removal is greater than 90% for most of the studied compounds, while antibiotics and Bisphenol A are the most resistant to treatment.

960 citations

Journal ArticleDOI
TL;DR: The results showed that paraxanthine, caffeine and acetaminophen were the main individual pollutants usually found in concentrations over 20 ppb, and the hydroxyl radical reaction was the major pathway for the oxidative transformation of these compounds.

849 citations

Journal ArticleDOI
TL;DR: In this paper, a review of surface-modified TiO2 photocatalysis based on photo-induced interfacial charge transfer has been conducted, which is mainly focused on environmental remediation, and various surface modifiers are classified according to the kind of surface modifiers and their effects on photocatalytic reaction mechanism and kinetics are discussed in detail.
Abstract: This paper reviews recent studies on the semiconductor photocatalysis based on surface-modified TiO2 of which application is mainly focused on environmental remediation. TiO2 photocatalysis that is based on the photoinduced interfacial charge transfer has been extensively studied over the past four decades. A great number of modification methods of semiconductor photocatalysts have been developed and investigated to accelerate the photoconversion, to enable the absorption of visible light, or to alter the reaction mechanism to control the products and intermediates. In this regard, various modification methods of TiO2 are classified according to the kind of surface modifiers (metal-loading, impurity doping, inorganic adsorbates, polymer coating, dye-sensitization, charge transfer complexation) and their effects on photocatalytic reaction mechanism and kinetics are discussed in detail. Modifying TiO2 in various ways not only changes the mechanism and kinetics under UV irradiation but also introduces visible light activity that is absent with pure TiO2. Each modification method influences the photocatalytic activity and mechanism in a way different from others and the observed modification effects are often different depending on the test substrates and conditions even for the same modification method. Better understanding of the modification effects on TiO2 photocatalysis is necessary to obtain reliable results, to assess the photoconversion efficiency more quantitatively, and to further improve the modification methods.

840 citations