The Determination of Dissolved Oxygen Concentration in Stationary Water

Abstract

In the paper the differential equation of the transfer speed of the oxygen towards water is numerically integrated, software is written and theoretical results are presented. A setup for experimental tests regarding the functioning of fine bubble generators was designed and built in the frame of the Department of Thermotechnics, Engines, Thermic and Refrigeration Plants laboratory. Measurements regarding the increase of the concentration of oxygen dissolved in water were performed. Theoretical and experimental results were compared.

Biosemiotics of Water in the Quran Surah Al-Anbiya’ Verse 30

“…Jika molekul air tersebut dilambangkan menjadi (H₂O), yang berarti molekul air tersusun dari dua atom hidrogen yang terikat kovalen dalam satu atom oksigen. Di mana peningkatan konsentrasi oksigen terlarut dalam air ( Căluşaru, Băran, & Costache 2013), yang digunakan sebagai proses "respirasi" atau semacam proses biosemiotik untuk menyerap molekul oksigen yang terdapat di udara bebas, dan dapat menghasilkan air sebagai sumber tempat berdiamnya mikroorganisme. Proses biosemiosis di sini adalah bagaimana seorang penafsir tanda merekonstruksi makna tanda dari unsur-unsur air yang ada di udara bebas untuk menghasilkan tanda-tanda atom oksigen sebagai sumber kehidupan yang ada dalam air, sehingga menjadi tanda-tanda mikroorganisme baru yang mampu daur ulang secara terus-menerus yang menyebar di semesta (Wickramasinghe 2006).…”

Researches on the Measurement of the Dissolved Oxygen Concentration in Stationary Waters

“…The panel (15) with the control electronics provides, via the mechanism (11), the rotation of the oxygen sensor probe in the water tank at a speed of 0.3 m / s.…”

Researches Regarding the Use of Additive Technologies in the Construction of Water Aeration Elements

“…Figure 11 shows the scheme of the experimental installation for the injection of atmospheric air into water. The measurement of dissolved oxygen in water is carried out with an oxygen meter whose operation is based on an electrical method; the oxygen meter is equipped with a probe (7) which during the measurement process performs a rotation movement at a velocity of 0.3 m / s [12].…”