Boron removal from landfill leachate by means of nanofiltration and reverse osmosis

Dydo, Piotr; Turek, Marian; Ciba, Jerzy; Trojanowska, J.; Kluczka, Joanna

doi:10.1016/j.desal.2005.03.076

Cited by 78 publications

(36 citation statements)

References 11 publications

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“…Due to the chemistry of boron, the boron is in the form of boric acid at natural pH and ED is only capable of removing about 42-75% of boron, in the case of RO treatment, this is 30-40% [31]. The low rejection of boric acid can be mainly attributed to its ability to diffuse through the membranes in a non-ionic form in the way similar to carboxylic acids or water [34]. Some investigation results showed that boric acid might be efficiently rejected only in its ionic form at a relatively high feed water pH [32,33].…”

Section: Introductionmentioning

confidence: 99%

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Boron removal from aqueous solution by direct contact membrane distillation

Hou

Wang

Sun

et al. 2010

Journal of Hazardous Materials

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Section: Introductionmentioning

confidence: 99%

“…Reverse osmosis (RO) and electrodialysis (ED) are two common membrane processes used for boron removal [28][29][30][31][32][33][34]. Due to the chemistry of boron, the boron is in the form of boric acid at natural pH and ED is only capable of removing about 42-75% of boron, in the case of RO treatment, this is 30-40% [31].…”

Section: Introductionmentioning

confidence: 99%

Boron removal from aqueous solution by direct contact membrane distillation

Hou

Wang

Sun

et al. 2010

Journal of Hazardous Materials

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“…, Cl -and SO heavy metals in leachate is variable (Szymański et al 2011;Jemec et al 2012). According to Dydo et al (2005), Bulc (2006) and Kanga et al (2008), other compounds, that may be harmful to environment, may be also found in leachate from landfills, such as: boron (B), sulphide (S -) and cyanide (CN -). Landfill leachates contain a large number of compounds, of which 80-95 % correspond to inorganic material and between 5 and 20 % are of organic origin (Ö man and Junestedt 2008).…”

Section: Introductionmentioning

confidence: 99%

Removal of organic and inorganic compounds from landfill leachate using reverse osmosis

Tałałaj

2014

Int. J. Environ. Sci. Technol.

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The main objective of this work was to evaluate an effectiveness of removing organic and inorganic pollutants from landfill leachate in a long-term reverse osmosis (RO) study. Investigations were carried out during the first year of RO exploitation since February till September 2013. Over 20 parameters were analysed both in leachate and permeate samples. In the first 1-year operation, the treatment performance was feasible for most of analysed leachate pollutants. The average removal rate of chemical oxygen demand (COD), electro-conductivity, ammonia nitrogen (N-NH 4 ? ), total inorganic nitrogen, cyanides (CN -), iron (Fe) and chlorides (Cl -) reached 97, 97.2, 98.7, 99, 93, 97.6 and 98 %, respectively. A smaller reduction rate-of 83 and 86 %-was obtained for sulphates (SO 4 2-) and sulphides (S -), what is the result of sulphuric acid addition before treatment process in order to decline a pH to a value of 6.0-6.5. Boron was eliminated only by 81 % due to easy transportation through the membrane uncharged species of boric acid B(OH) 3 , which predominate in leachate. Average reduction of nitrites (NO 2 -) and nitrates (NO 3 -) was 63.8 %, which is the result of inhibition NO 2 -oxidizers by nitrous acid and relatively low ratio of biochemical oxygen demand and COD (BOD/COD). The obtained permeate quality does not meet the Polish discharge standards for S -. It is also foreseen that the concentration of N-NH 4 ? in maturate leachate will increase in the next years.

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“…El boro es un microelemento esencial para las plantas (Yilmaz, Boncukcuo ǧ lu, Kocakerim, Yilmaz & Paluluo ǧ lu, 2008) como para los animales (Dydo, Turek, Ciba, Trojanowska & Kluczka, 2005), aunque en la actualidad, sigue siendo un tema de interés y debate su efecto perjudicial (Mustafa & Sirri, 2013). A pesar que las concentraciones permisibles varían de un país a otro (Hilal, Kim & Somerfield, 2011), la Organización Mundial de la Salud (2011), refiere que entre 0,1-0,3 mg.L -1 oscilan las concentraciones en agua potable, asignando un valor de referencia provisional de 0,5 mg.L -1 , así como 2,4 mg.L -1 para el consumo humano (Tagliabue, Reverberi & Bagatin, 2014).…”

Section: Introductionunclassified