Effect of freezing-air thawing pretreatment of cutting fluid wastewater on the organics' distribution, transfer and transformation

Chang, Yang Yang; Yu, Jing; Wang, Shao Po; Ji, Hua

doi:10.1016/j.jwpe.2023.103514

Journal of Water Process Engineering

2023

DOI: 10.1016/j.jwpe.2023.103514

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Effect of freezing-air thawing pretreatment of cutting fluid wastewater on the organics' distribution, transfer and transformation

Yang Yang Chang

Jing Yu

Shao Po Wang

et al.

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Cited by 3 publications

References 27 publications

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Design and application of B-containing hard coatings for high-speed dry cutting against Ti-alloys- A review

Fang,

Tao,

Zhang

et al. 2024

Surf. Sci. Tech.

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Titanium alloys have been extensively applied due to their outstanding features, including high specific strength and corrosion resistance. However, the machining of these alloys presents challenges, leading to significant tool wear and reduced tool lifetime, ascribed to the difficult-to-machine features of Ti alloys. In the context of pursuing environmental sustainability and enhanced productivity, high-speed dry-cutting technology coupled with high-quality tool coatings are prospective. This paper comprehensively explores wear patterns and recent advancements in tool coatings for high-speed dry cutting of Ti-alloys. Key coating properties such as resistance to abrasion, adhesion, oxidation, fatigue, hot hardness, and self-adaptability are briefly introduced. Design strategies for enhancing micro-hardness, toughness, and adhesion, including nanocomposite, multilayer, and gradient architectures, are also discussed. Furthermore, the paper highlights several Boron (B) doped hard coatings as promising candidates for high-speed dry cutting against Ti-alloys, exploring the impact of B on microstructure, hardness, thermal stability, oxidation resistance, and lubrication. In summary, this work provides a systematic overview of novel B-doped tool coatings applied in high-speed dry cutting against Ti-alloys.

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Design and application of B-containing hard coatings for high-speed dry cutting against Ti-alloys- A review

Fang,

Tao,

Zhang

et al. 2024

Surf. Sci. Tech.

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show abstract

Optimization of microwave irradiation demulsifying cutting fluid wastewater and organics’ distribution and transfer

Liu,

Li,

Zhang

et al. 2025

Desalination and Water Treatment

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Distribution and transfer of organics in the coagulation–anaerobic hydrolysis–aerobic treatment process of cutting fluid wastewaters

Zhang,

Yu,

Han

et al. 2024

Water Practice &Amp; Technology

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Two kinds of real cutting fluid wastewater samples (i.e., sample A and sample B) and two kinds of coagulants (i.e., polymeric aluminum chloride (PAC) and polymeric iron sulfate (PFS)) were studied during coagulation experiment, and the coagulation effluent of sample B with PAC was utilized for subsequent anaerobic hydrolysis–aerobic treatment, and the molecular weight (MW) distribution and ultraviolet (UV) absorption spectroscopy were used to explore the distribution and transfer of organics of each treatment unit. The results showed that sample A and sample B both mainly contained macromolecular organics with MW > 100 kDa and small molecule organics with MW < 3 kDa, and PAC had significant coagulation performance for organics with MW > 100 kDa in both samples, while neither PAC nor PFS achieved good coagulation performance for the small molecule organics with MW < 3 kDa in both samples. It could be inferred by UV spectra that the coagulation effluent of sample A and B might both contain organics with conjugated double bonds, monocyclic aromatic hydrocarbons, and the coagulation effluent of sample B might also contain polycyclic aromatic hydrocarbons and heterocyclic compounds with low MW. MW distribution analysis and the UV spectra results showed that biological treatment could further remove organics with conjugated double bonds and aromatic compounds with MW < 3 kDa.

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Effect of freezing-air thawing pretreatment of cutting fluid wastewater on the organics' distribution, transfer and transformation

Cited by 3 publications

References 27 publications

Design and application of B-containing hard coatings for high-speed dry cutting against Ti-alloys- A review

Design and application of B-containing hard coatings for high-speed dry cutting against Ti-alloys- A review

Optimization of microwave irradiation demulsifying cutting fluid wastewater and organics’ distribution and transfer

Distribution and transfer of organics in the coagulation–anaerobic hydrolysis–aerobic treatment process of cutting fluid wastewaters

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