2025年4月1日 · In this study, a novel gravity-driven (GD) dynamic membrane filtration (DMF) reactor was designed. The MP removal efficiency and mechanism were investigated for real PRF wastewater by using i) direct filtration (control), ii) pre-coating with wastewater treatment plant (WWTP) sludge, and iii) co-filtration with WWTP sludge.

2023年5月1日 · The purpose of this study is threefold: 1) to identify if this PRF discharges MPs in wash water; 2) to consider the effectiveness of the filtration system in mitigating overall and small particle MP quantities in PRF wash water; and 3) to highlight PRF as a potential MP source of plastic pollution to the environment that may need further future ...

2024年5月30日 · There is little knowledge about microplastic (MP) pollution in plastic recycling facility (PRF) wastewater. In this study, MPs in the wastewaters of four PRFs located in Türkiye were characterized for size, shape, color, and polymer types after sieving from 5,000 µm to the lowest 75 µm with seven sieves.

2024年4月9日 · 聚乙烯和聚丙烯是 22 种聚合物类型中的主要 MP 类型（占总数的 75%）。 设备软件 (OPUS) 和开放软件 (OpenSpecy) 的聚合物平均命中质量从 69% 提高到 84% 以上。 混合 PRF 的 MP 丰度确定为 53,987 MPs/L 和 0.8 g MP/L，LDPE 回收设施的 MP 丰度为 7,582 MPs/L 和 4.6 g/L，造粒冷却设施的 MP 丰度为 2,196 MPs/L 和 0.06 g MPs/L分别按计数和重量计算水。 在底部样品中发现的小尺寸 MP 远多于表面和洗涤槽中的废水样品。 这表明 MPs 由于吸附污 …

2023年5月1日 · Summary of average particle counts per m 3 per sample, showing higher particle counts in all pre-compared to post-filtration samples (a). Post-filtration MP < 10μm (the majority of the...

Myofascial pain syndrome (MPS) of the trapezius muscle (TM) is a frequently occurring musculoskeletal disorder. However, the treatment of MPS of the TM remains a challenge. We investigated the effects of ultrasound (US)-guided pulsed radiofrequency (PRF) stimulation on the interfascial area of the T …

2024年5月30日 · There is little knowledge about microplastic (MP) pollution in plastic recycling facility (PRF) wastewater. In this study, MPs in the wastewaters of four PRFs located in Türkiye were characterized for size, shape, color, and polymer types after sieving from 5,000 µm to the lowest 75 µm with seven si …

The average number of MPs in PRF of the feed was 12,835±6,218 MP/L. Results showed that mass removal rates of MPs reached more than 99.5% in each size of the support materials, which is comparable with polymeric membranes. The MPs removal efficiencies by number ranged between 68.3% and 99.0% in all meshes.

Myofascial pain syndrome (MPS), especially in the neck and shoulder region, is one of the most common chronic pain disorders worldwide. Dry needling (DN) and pulsed radiofrequency (PRF) are the two effective methods for treating MPS. We aimed to compare the effects of DN and PRF in chronic neck and shoulder MPS patients. Methods and analysis

2017年2月3日 · We investigated the effects of ultrasound (US)-guided pulsed radiofrequency (PRF) stimulation on the interfascial area of the TM. In addition, we compared its effect with that of interfascial block (IFB) with 10 mL of 0.6% lidocaine on the interfascial area of the TM.