Photocatalytic Treatment of Waste Water from Rice Husk Alkaline Hydrolysate

doi:10.1016/j.rsci.2018.10.008

Abstract

Abstract:

We carried out photocatalytic treatment of a lignin-free solution of rice husk alkaline hydrolysate [pH of 2, chemical oxygen demand (COD) of 12.8 g/L] using photo-Fenton process in the ultraviolet (UV, wavelength of 365 nm) and visible spectrum. Oxidation of lignin was performed at a constant mass ratio of COD:H2O2 as 1:2 and Fe2+ concentration of 80 mg/L. It was established that for the destruction of alkaline lignin, exposure to visible or UV radiation was necessary. Decolorization efficiency of a lignin-free solution depends on the dilution rate of the solution. The advanced oxidative photo-Fenton process (UV/Н2О2/Fe2+) made it possible to reduce the color of lignin-free solution at a dilution ratio of 1:5 by 94% of decolorization efficiency, 87% of phenolic compound and 79% of COD. With the help of gas chromatography, the products of lignin destruction were low-toxic and usable.

D. Arefieva Olga, S. Vasilyeva Marina, V. Ermolenko Ekaterina, V. Bychkova Anastasiia. Photocatalytic Treatment of Waste Water from Rice Husk Alkaline Hydrolysate[J]. Rice Science, 2019, 26(4): 257-260.

Figures/Tables 4

References 14

[1]	Ahmaruzzaman M, Gupta V K.2011. Rice husk and its ash as low-cost adsorbents in water and wastewater treatment.Ind Eng Chem Res, 50: 13589-13613.
[2]	Amat A M, Arques A, Miranda M A, López F.2005. Use of ozone and/or UV in the treatment of effluents from board paper industry.Chemosphere, 60(8): 1111-1117.
[3]	Catalkaya E C, Kargi F.2007. Color, TOC and AOX removals from pulp mill effluent by advanced oxidation processes: A comparative study.J Hazard Mater, 139(2): 244-253.
[4]	Kasaikina O T, Pisarenko L M, Lesin V I.2012. Colloidal catalysts based on iron(III) oxides: 2. Features of catalyzed palm oil oxidation.Colloid J, 74(4): 483-488.
[5]	Khataee A, Vahid B, Behjati B, Safarpour M, Joo S W.2014. Kinetic modeling of a triarylmethane dye decolorization by photoelectro-Fenton process in a recirculating system: Nonlinear regression analysis.Chem Eng Res Des, 92(2): 362-367.
[6]	Lesin V I, Pisarenko L M, Kasaikina O T.2012. Colloidal catalysts based on iron(III) oxides: 1. Decomposition of hydrogen peroxide.Colloid J, 74(1): 85-90.
[7]	Lucas M S, Peres J A, Amor C, Prieto-Rodríguez L P, Maldonado M I, Malato S.2012. Tertiary treatment of pulp mill wastewater by solar photo-Fenton.J Hazard Mater, 225/226: 173-181.
[8]	Minu K, Jiby K Kurian, Kishore V V N.2012. Isolation and purification of lignin and silica from the black liquor generated during the production of bioethanol from rice straw.Biomass Bioenerg, 39(4): 210-217.
[9]	Pérez M, Torrades F, Garcia-Hortal J A, Domenech X, Peral J.2002. Removal of organic contaminants in paper pulp treatment effluents under fenton and photo-Fenton conditions.Appl Catal B: Environ, 36(1): 63-74.
[10]	Raj A, Reddy M M K, Chandra R.2007. Decolourisation and treatment of pulp and paper mill effluent by lignin-degradingBacillus sp. J Chem Technol Biot, 82(4): 399-406.
[11]	Sarkar P, Moyez S A, Dey A, Roy S, Das S K.2017. Experimental investigation of photocatalytic and photovoltaic activity of titania/rice husk crystalline nano-silica hybrid composite.Solar Energ Mat Solar Cell, 172: 93-98.
[12]	Sevimlia M F, Deliktas E, Sahinkay S, Guclu D.2014. A comparative study for treatment of white liquor by different applications of Fenton process.Arab J Chem, 7(6): 1116-1123.
[13]	Vidal G, Videla S, Diez M C.2001. Molecular weight distribution ofPinus radiate kraft mill wastewater treated by anaerobic digestion. Bioresource Technol, 77(2): 183-191.
[14]	Xu M J, Wang Q S, Hao Y L.2007. Removal of organic carbon from wastepaper pulp effluent by lab-scale solar photo-Fenton process.J Hazard Mater, 148: 103-109.

Condition of destruction	Color	Chemical oxgen demand (mg/L)	Polyphenol content (mg/L)	Iron content (mg/L)
Stock solution	469	2560	131.29	-
A control experiment (Fenton)	543	5837	52.65	-
Ultraviolet spectrum (3 h) and visible spectrum	39 ± 15	550 ± 22	19.26 ± 0.36	20.25
Visible spectrum	46 ± 10	540 ± 70	17.55 ± 2.42	33.25

Condition of destruction	Color	Chemical oxgen demand (mg/L)	Polyphenol content (mg/L)	Iron content (mg/L)
Stock solution	469	2560	131.29	-
A control experiment (Fenton)	543	5837	52.65	-
Ultraviolet spectrum (3 h) and visible spectrum	39 ± 15	550 ± 22	19.26 ± 0.36	20.25
Visible spectrum	46 ± 10	540 ± 70	17.55 ± 2.42	33.25

Name	Spectrum		MPC (mg/L)	Compound property
Name	UV	VIS	MPC (mg/L)	Compound property
N-phenyl-naphthalenamine	+	+	-	Causes methemoglobin formation, hypoxia develops, CNS disorders
Benzoic acid	+	+	0.600	Suppresses the growth of mold, yeast and some bacteria
Benzo[b]thiophene	-	+	-	Insecticidal and fungicidal properties
Butylated hydroxytoluene	+	+	-	An antiseptic, a typical inhibitor
Decanal	-	+	-	Contained in coriander, cassia, iris and rose. Applied as components of perfume compositions and food essences
n-Decanoic acid	+	+	-	Found in cow oil, in vegetable oils, in a small amounts is contained in sperm oil
n-dodecanoic acid	+	+	-	Antibiotic activity
Naphthalene	+	+	0.010	Characterized by antiseptic properties
Nonanoic acid	+	+	-	Contained in the form of ethers in volatile oil of geranium, in fusel oil of fodder beet and potato
Octanoic acid	+	+	-	Normalizes microbiocenosis and digestive system, strengthens the immune system
Pentadecanoic acid	+	+	-	Found in nature and contained in butter
Squalane	+	+	-	A component of some pharmaceutical and cosmetic preparations
Squalene	+	+	-	Contained in olive, cotton and linseed oil; in many animals and plant tissues. A component of some pharmaceutical and cosmetic preparations
Stigmast-4-en-3-one	+	+	-	A high biological activity
Tetradecanoic acid	+	+	-	In nature, this acid is found in abundance: in the form of triglycerides in many vegetable oils.
Eicosane	+	+	-	An integral part of paraffin
Biphenyl	-	+	0.001	Applied as a fungicide and antiseptic
Hexadecane	-	+	-	Used as a benchmark for assessing the quality of diesel fuel
UV and VIS represent the ultraviolet (wavelength of 365 nm) and visible spectrum. MPC, Maximum permissible concentration; ‘+’ means presence in extract; ‘-’ means absence in extract.

Name	Spectrum		MPC (mg/L)	Compound property
Name	UV	VIS	MPC (mg/L)	Compound property
N-phenyl-naphthalenamine	+	+	-	Causes methemoglobin formation, hypoxia develops, CNS disorders
Benzoic acid	+	+	0.600	Suppresses the growth of mold, yeast and some bacteria
Benzo[b]thiophene	-	+	-	Insecticidal and fungicidal properties
Butylated hydroxytoluene	+	+	-	An antiseptic, a typical inhibitor
Decanal	-	+	-	Contained in coriander, cassia, iris and rose. Applied as components of perfume compositions and food essences
n-Decanoic acid	+	+	-	Found in cow oil, in vegetable oils, in a small amounts is contained in sperm oil
n-dodecanoic acid	+	+	-	Antibiotic activity
Naphthalene	+	+	0.010	Characterized by antiseptic properties
Nonanoic acid	+	+	-	Contained in the form of ethers in volatile oil of geranium, in fusel oil of fodder beet and potato
Octanoic acid	+	+	-	Normalizes microbiocenosis and digestive system, strengthens the immune system
Pentadecanoic acid	+	+	-	Found in nature and contained in butter
Squalane	+	+	-	A component of some pharmaceutical and cosmetic preparations
Squalene	+	+	-	Contained in olive, cotton and linseed oil; in many animals and plant tissues. A component of some pharmaceutical and cosmetic preparations
Stigmast-4-en-3-one	+	+	-	A high biological activity
Tetradecanoic acid	+	+	-	In nature, this acid is found in abundance: in the form of triglycerides in many vegetable oils.
Eicosane	+	+	-	An integral part of paraffin
Biphenyl	-	+	0.001	Applied as a fungicide and antiseptic
Hexadecane	-	+	-	Used as a benchmark for assessing the quality of diesel fuel
UV and VIS represent the ultraviolet (wavelength of 365 nm) and visible spectrum. MPC, Maximum permissible concentration; ‘+’ means presence in extract; ‘-’ means absence in extract.