Treatment of oily effluent using a low-cost biosurfactant in a flotation system

Formulation of a Biodegradable Detergent for Cleaning Oily Residues Generated during Industrial Processes

“…Plant derived surfactants also showed better surface-active properties than the synthetic sodium lauryl sulfate (SLS) and Tween 80 (Tmáková et al, 2015). In another study, the biosurfactant produced by the bacterium Pseudomonas aeruginosa proved to be an auxiliary tool in flotation processes for the treatment of oily waters generated by industrial activities as it increased the oil separation efficiency of the Dissolved air flotation (DAF) process by 65-95% (Silva et al, 2019). In addition to the results obtained on the properties of the formulation obtained in this work, practical data from a company, used as a possible customer were collected in order to present a real possibility of using the biodetergent in the market.…”

“…Crude oil is transported from production fields to refineries by oil pipes or ships. After refining, a portion of the products (gasoline, diesel oil, jet fuel, asphalt, heavy fuel oil, and lubricants) is then piped to terminals to be delivered to distributors, who, in turn, supply to the market, which includes thermoelectric plants, airlines, fleets of vehicles, and gas stations (Rocha e Silva et al, 2019).…”

“…The detergents, degreasing agents, and solvents commonly used for the cleaning of grease-covered surfaces are synthetic and highly toxic, posing risks to both the environment and the health of workers involved in the cleaning process. Moreover, most commercial detergents/degreasing agents are petroleum based, many of which are nonbiodegradable and have a long halflife in the environment (Rocha e Silva et al, 2019). Other important factors associated with these products are the high cost (ranging from R$ 28-51 per liter), inefficient grease removal, and corrosivity, which diminishes the useful life of parts and equipment in industrial plants (Almeida et al, 2016;Soares da Silva et al, 2019).…”

Biosurfactants: Production and application prospects in the food industry

“…Although there is no well-established method yet for obtaining a biosurfactant with greater productivity and economic recovery, 73,74 there has been constant strategic development in recent years with the aim of increasing the economic viability and competitiveness of biosurfactants. 75,76 The literature reports the most diverse types of substrates used in biosurfactant production, such as by-products of processing in different industrial sectors, such as glycerol, 77 waste frying oil, 4,78 sugarcane molasses 1 and corn steep liquor. 79 The use of other substrates has also recently been reported, such as sugarcane bagasse, green coconut, and straw from the carnauba palm.…”

Influence of indigenous mixotrophic bacteria on pyrite surface chemistry: Implications for bioflotation

“…Kata kunci: bakteri mixotrof, bioflotasi, biosurfaktan, pirit, sudut kontak MICROBIOLOGY INDONESIA Available online at http://jurnal.permi.or.id/index.php/mioline ISSN 1978-3477, eISSN 2087 *Corresponding author: Phone: +62-22-2502239; Fax: +62-22-2504209; Email: skchaerun@metallurgy.itb.ac.id bioreagents is a promising alternative to green flotation (bioflotation) because the biosurfactant is degradable, not toxic, and especially it brings out from the renewable resources (Lima et al 2019;Silva et al 2019).…”