Low power ultrasonic cleaners can remove fine particles from surface by adding soot. 低出力の超音波洗浄機でも、ススを添加すれば表面からサブミクロン粒子を剥離できる

数百nmの粒子が堆積された基板を「特別な」スス粒子が含まれている水系懸濁液に超音波法を利用した微粒子回収法・洗浄法が提案された。Aqueous samples can be prepared by a novel method for detaching submicron particulates deposited on substrate.

Micrometer-sized “wet” aerosols on to a hydrophilic surface. 数μmのwetエアロゾルが親水性表面にどのように沈着するのか?

大気に浮遊する微粒子の沈着の場所について考えてみた。”Wet”微粒子は「親水性の高い」場所に多く沈着する。”Dry”微粒子”は「親水性の低い」場所に多く沈着する。Considered the location of the deposition of particles suspended in the air. The results: “More hydrophilic” area trapped more “wet” particles. The “less hydrophilic” area trapped more “dry” particles.

Collection of particles in tap water by electrophoresis. 電気泳動法で水道水中の微粒子の採集

Other “intro” of papers from our lab >> /tag/paper/ Removal of iron-oxide particles after post-filtration in local potable water using an electrophoretic method Collaborated with: Univ. Putra Malaysia; Univ. Teknologi MARA, Malaysia Journal of Water Process Engineering: Vol. 9, Feb. 2016, Pages 208–214. doi: Full text/PDF: Researchgate, or here Keywords: Electrophoretic deposition; Fibre electrodes; Limiting flux;…

What happens when we spray water-soluble “air pollution” particles to plants for 2 years? 水溶性 「大気汚染」 粒子を植物に2年間散布したらどうなるでしょう?

JOURNAL: Atmospheric Environment (2014) https://doi.org/10.1016/j.atmosenv.2014.01.023 Effects of 2-years exposure to (sub-micron) ammonium sulfate particles on growth and gas exchange rates of Fagus crenata (ブナ), Castanopsis sieboldii (スダジイ), Larix kaempferi (唐松) and Cryptomeria japonica (スギ) seedlings •No significant effect of the particles on growth was observed after 2 years.•Net photosynthetic rates of 3 species were not significantly changed.•Net photosynthesis…

Seminar from ITB professor (11 Apr.) Wetland potential for recycling of wastewater treatment plant effluent (湿地、排水処理)

当研究室に2週間滞在のインドネシア・バンドン工科大学・環境工学科Prayatni教授にセミナーをお願いしました。 会場はBASE大会議室(1F)11:00です。 Open seminar by Prof. Prayatni Soewondo, Environmental Engineering, Faculty of Civil Engineering and Environmental, Institut Teknologi Bandung (ITB), Indonesia. http://personal.ftsl.itb.ac.id/prayatni/ Link = ITB 11 APRIL 2013, 11:00-12:00, Venue: BASE 1st Floor meeting room. Wetland Potential as alternative solution for recycling of domestic WWTP (wastewater treatment plant) Effluent. Case Study : Bojongsoang WWTP, Bandung….