Analysis of Granulometric Composition of Algal Suspensions in Wastewater Treated with Hydroponic Method
Aleksandra Bawiec , Katarzyna Pawęska , Krzysztof Pulikowski
AbstractThe aim of the study was to determine the changes in suspension particle size identified in biologically treated wastewater, which was then treated in hydroponic system with use of engineering lighting by the light-emitting diodes (LED). The studywas subjected to wastewater purified under laboratory conditions, in a hydroponic system using the effect of macrophytes Pistia stratiotes and growing algae. Measurement of particle size was made using a laser granulometer. Analysis of the results showed that the additional lighting of the hydroponic system with LED can significantly influence the ability of the suspension particles to agglomerate and, consequently, determine their sedimentation properties. In hydroponic system supported by additional lighting, more particles were observed with equivalent diameter D(3.2) smaller than 10 µm than those in the tank without additional lighting, indicating a higher reactivity of the particles. Determining the size of equivalent diameters D(4.3)allowed us to observe that in hydroponic system, particles of relatively small size predominate, which negatively affects the sedimentation process of the suspensions. Determination of particle size of suspensions consisting mainly of algae and thedynamics of their changes are the basis for specification of an effective method of removing particles from the system to protect the receiver from excessive suspension concentrations.
|Journal series||Water Air and Soil Pollution, ISSN 0049-6979, (A 25 pkt)|
|Publication size in sheets||0.55|
|Keywords in English||Algal suspensions; Wastewater treatment; Granulometric composition; Laser granulometer; Particle size analysis|
|ASJC Classification||; ; ; ;|
|Internal identifier||63853; PX-59c8fe54d5de156e7ccf28d9|
|License||Journal (articles only); published final; ; after publication|
|Score||= 25.0, 02-07-2020, ArticleFromJournal|
|Publication indicators||= 3; = 3; : 2017 = 0.728; : 2017 = 1.769 (2) - 2017=1.972 (5)|
|Citation count*||3 (2020-09-25)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.