The production of high-value bioproducts from microalgae biomass has been widely investigated. However, their is hindered by the expensive harvesting process. To date, flocculation followed DAF process accepted as one affordable approaches. In this study, use technique was attempted to harvest marine Nannochloropsis sp. Batch carried out using fabricated unit equipped with several compartments ...

The performance of microflotation, dispersed air flotation with microbubble clouds with bubble size about 50 µm, for algae separation using fluidic oscillation for microbubble generation is investigated. This fluidic oscillator converts continuous air supply into oscillatory flow with a regular frequency to generate bubbles of the scale of the exit pore. Bubble characterization results showed t...

In this chapter we are concerned with interactions between particles, including air bubbles. Such interactions occurring across aqueous solutions are of special interest Ž since they determine phenomena in mineral processing, including froth flotation Leja, . 1982; Schulze, 1984 . The most important types of colloidal forces will be introduced and discussed together with short descriptions of t...

The performance of a novel industrial membrane bioreactor (MBR) comprising denitrification, nitrification and ultrafiltration for the secondary treatment of primary treated animal rendering wastewater has been compared with an experimental, low-cost and novel vertical-flow constructed treatment wetland planted with Typha latifolia L. The process wastewater followed pre-treatment by dissolved ai...

It has been more than 37+ years since the first dissolved air flotation (DAF) drinking water treatment plant in Americas came online Lenox, Massachusetts, USA, 1982. Since that time, innovative DAF process – long favored for treating a wide variety of waste solids grown to become popular plants and throughout entire world.

The present work investigates the conjugation of flotation and photo-Fenton techniques on oil removal performance from oilfield produced water. The experiments were conducted in a column flotation and annular lamp reactor for induced air flotation and photodegradation steps, respectively. A nonionic surfactant was used as a flotation agent. The flotation experimental data were analyzed in terms...

dissolved nitrogen predispersed solvent extraction (dnpdse) is a new method devised for improving the performance of equipment utilized in the solvent extraction (sx) method, especially for dilute solutions. in this method, for mixing the two phases, bubble dispersion of the organic phase (colloidal gas aphrons [cgas]) is used instead of its drop dispersion in the aqueous phase. through increas...

In this paper, we build an air conveyor with newly developed vortex bearing elements, and study the flotation precision of the front-end of the substrate in quasi-static flotation transport. We experimentally discuss the three influential factors: air supply pressure, thickness of the substrates and installing direction of the vortex bearing element. We find that during the process of transport...