A spectrophotometric procedure has been developed for determination of oil and grease in aqueous phase. The water sample is acidified to a low pH (less than or equal to 2) and extracted with 1,1,2-trichloro-l,2,2-trifluoroethane (Freon 113, or CFC 113). Under controlled conditions, the oil and grease are extractable into a selected organic…[Read more]

A spectrophotometric procedure has been developed for determination of oil and grease in aqueous phase. The water sample is acidified to a low pH (less than or equal to 2) and extracted with 1,1,2-trichloro-l,2,2-trifluoroethane (Freon 113, or CFC 113). Under controlled conditions, the oil and grease are extractable into a selected organic…[Read more]

Tsao, Hung-ping (2022). Evolutionary mathematics and science for On the Terminal Value Distribution in the Process of Successively Summing up all Prime Factors of a Given Natural Number. In: “Evolutionary Progress in Science, Technology, Engineering, Arts, and Mathematics (STEAM)”, Wang, Lawrence K. and Tsao, Hung-ping (editors). Volume 4, Number…[Read more]

Tsao, Hung-ping (2022). Evolutionary mathematics and science for On the Terminal Value Distribution in the Process of Successively Summing up all Prime Factors of a Given Natural Number. In: “Evolutionary Progress in Science, Technology, Engineering, Arts, and Mathematics (STEAM)”, Wang, Lawrence K. and Tsao, Hung-ping (editors). Volume 4, Number…[Read more]

Wang, LK and Wang, MHS (2022). Dissolved oxygen model, vapor pressure, evaporation lagoon, and flotation post aeration; In: “Evolutionary Progress in Science, Technology, Engineering, Arts and Mathematics (STEAM)”, Wang, LK and Tsao, HP (eds.), 4 (7H), STEAM-VOL4-NUM7H-JULY2022. ISBN 978-0-9890870-3-2. 55 pages. July 2022, Lenox Institute Pre…[Read more]

Wang, LK and Wang, MHS (2022). Dissolved oxygen model, vapor pressure, evaporation lagoon, and flotation post aeration; In: “Evolutionary Progress in Science, Technology, Engineering, Arts and Mathematics (STEAM)”, Wang, LK and Tsao, HP (eds.), 4 (7H), STEAM-VOL4-NUM7H-JULY2022. ISBN 978-0-9890870-3-2. 55 pages. July 2022, Lenox Institute Pre…[Read more]

Wang, LK and Wang, MHS (2022). Hazardous wastewater treatment in petroleum refining industry using best available flotation and filtration technologies. In: “Evolutionary Progress in Science, Technology, Engineering, Arts and Mathematics (STEAM)”, Wang, LK and Tsao, HP (eds.), 4 (7G), STEAM-VOL4-NUM7G-JULY2022. ISBN 978-0-9890870-3-2. pp.…[Read more]

Wang, LK and Wang, MHS (2022). Hazardous wastewater treatment in petroleum refining industry using best available flotation and filtration technologies. In: “Evolutionary Progress in Science, Technology, Engineering, Arts and Mathematics (STEAM)”, Wang, LK and Tsao, HP (eds.), 4 (7G), STEAM-VOL4-NUM7G-JULY2022. ISBN 978-0-9890870-3-2. pp.…[Read more]

This material is compiled from various YouTube videos and is in the form of transcription data that describes the development of language teaching methods and explaining by several experts in the language teaching and learning process. Therefore, it is forbidden to distribute the data for any commercial use.

A physicochemical (PC) and biological two-stage wastewater treatment system has successfully treated a food ingredients manufacturing effluent for decades. The first stage PC treatment is a Supracell dissolved air flotation (DAF), which has a diameter of 8 ft (2400 mm). The second stage treatment is an aerobic biological package plant. The…[Read more]

Wang, LK and Wang, MHS (2022). Cocoa processing waste pretreatment and mobile flotation plants; In: “Evolutionary Progress in Science, Technology, Engineering, Arts and Mathematics (STEAM)”, Wang, LK and Tsao, HP (eds.), 4 (7F), STEAM-VOL4-NUM7F-JULY2022. ISBN 978-0-9890870-3-2. 43 pages. July 2022, Lenox Institute Press, MA, USA. ……[Read more]

In the middle of geopolitical currents, this paper seeks to replicate the discourse on the emergence and sustainability of language acquisition. As a writer, I believe that this discussion should be continued since it draws lessons from the current global position in which Ukraine finds itself, with Russia’s horrific invasion. On the other hand,…[Read more]

Wang, LK and Wang, MHS (2022). Green innovations in flotation, protein separation, flue gas reuse, new process systems, sulfide precipitation, chromium removal, and tannery waste treatment. In: “Evolutionary Progress in Science, Technology, Engineering, Arts and Mathematics (STEAM)”, Wang, LK and Tsao, HP (eds.), 4 (7E), STE…[Read more]

Wang, LK and Wang, MHS (2022). Green innovations in flotation, protein separation, flue gas reuse, new process systems, sulfide precipitation, chromium removal, and tannery waste treatment. In: “Evolutionary Progress in Science, Technology, Engineering, Arts and Mathematics (STEAM)”, Wang, LK and Tsao, HP (eds.), 4 (7E), STE…[Read more]