Erratum for “Experimental Study on the Performance of a Sand Filtration Method and Device by Using Natural Soils and Subsurface PVC Drainage Pipes” by Tian Xia, Juncang Tian, and Wenping Fei

Xia, Tian; Tian, Juncang; Fei, Wenping

doi:10.1061/(ASCE)IR.1943-4774.0001626

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Aug 30, 2021

Erratum for “Experimental Study on the Performance of a Sand Filtration Method and Device by Using Natural Soils and Subsurface PVC Drainage Pipes” by Tian Xia, Juncang Tian, and Wenping Fei

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Authors: Tian Xia [email protected], Juncang Tian [email protected], and Wenping Fei [email protected]Author Affiliations

Publication: Journal of Irrigation and Drainage Engineering

Volume 147, Issue 11

https://doi.org/10.1061/(ASCE)IR.1943-4774.0001626

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During composition, a conversion error resulted in several incorrect values. The following changes should be made:

1.

In the “Experimental Material and Preparation” section:

•

“

1 m^{3}

” should be “

10^{- 4} m^{3}

.”

•

Two instances of “

135 g / m^{3}

” should be “

1.35 \times 10^{6} g / m^{3}

.”

•

Two instances of “

143 g / m^{3}

” should be “

1.43 \times 10^{6} g / m^{3}

.”

•

“

131 g / m^{3}

” should be “

1.31 \times 10^{6} g / m^{3}

.”

2.

In the “Experimental Method” section:

•

“

1 m^{3}

” should be “

10^{- 4} m^{3}

.”

•

“

250 - 280 g / m^{3}

” should be “

2.5 - 2.8 \times 10^{6} g / m^{3}

.”

•

“

265 g / m^{3}

” should be “

2.65 \times 10^{6} g / m^{3}

.”

3.

In the “Filtration Velocity of the Filtered Water” section, in order to match the corresponding units of measure presented in Figs. 4 and 5:

•

“

0.0178 m / h

” should be “

1.78 cm / h

.”

•

“

0.0075 m / h

” should be “

0.75 cm / h

.”

4.

In the “Impact of Sandy Water Filtration on Soil Physical Properties” section:

•

“

112 g / m^{3}

” should be “

1.12 \times 10^{6} g / m^{3}

.”

•

“

128 g / m^{3}

” should be “

1.28 \times 10^{6} g / m^{3}

.”

•

“

02 - 0.4 m

” should be “

0.2 - 0.4 m

.”

•

“

163 g / m^{3}

” should be “

1.63 \times 10^{6} g / m^{3}

.”

•

“

135 g / m^{3}

” should be “

1.35 \times 10^{6} g / m^{3}

.”

•

“

151 g / m^{3}

” should be “

1.51 \times 10^{6} g / m^{3}

.”

•

“

143 g / m^{3}

” should be “

1.43 \times 10^{6} g / m^{3}

.”

5.

Tables 1 and 2 included conversion errors in the “Bulk density (

g / m^{3}

)” columns and the footnotes. Table 1 also contained a typographical error in the “Depth (m)” column. The correct tables are provided herein.

Table 1. Physical properties of disturbed soil (sandy loam soil as filter media)

Depth (m)	Particle size distribution			Bulk density ( $g / m^{3}$ )	Porosity	Pore size distribution
Depth (m)	Clay (%)	Silt (%)	Sand (%)	Bulk density ( $g / m^{3}$ )	Porosity	30 μm–1 mm (%)	200 nm–30 μm (%)
0–0.2	12.63	51.04	36.33	$1.44 \times 10^{6}$	0.45	5.3	24.6
0.2–0.4	13.14	51.33	35.53	$1.72 \times 10^{6}$	0.35	6.4	22.5
0.4–0.6	13.83	55.44	30.73	$1.68 \times 10^{6}$	0.36	5.7	20.9
0.6–0.8	13.50	54.95	31.55	$1.75 \times 10^{6}$	0.33	6.0	19.8
0.8–1	13.43	51.59	34.98	$1.57 \times 10^{6}$	0.40	5.8	21.7

Note: Physical properties of undisturbed sandy loam soil = clay 5.45%, silt 32.05%, and sand 62.50%; bulk density $1.35 \times 10^{6} g / m^{3}$ ; porosity 0.49; transmission pores (effective diameter 30 μm–1 mm) occupying 14.1% of the total pore space; and storage pores (effective diameter 200 nm–30 μm) occupying 19.2% of the total pore space. The amount of macro pores (effective diameter 1–10 mm) is tiny and is not taken into consideration.

Table 2. Physical properties of disturbed soil (sandy soil as filter media)

Depth (m)	Particle size distribution			Bulk density ( $g / m^{3}$ )	Porosity	Pore size distribution
Depth (m)	Clay (%)	Silt (%)	Sand (%)	Bulk density ( $g / m^{3}$ )	Porosity	30 μm–1 mm (%)	200 nm–30 μm (%)
0–0.2	18.86	10.18	70.96	$1.47 \times 10^{6}$	0.42	13.8	19.4
0.2–0.4	19.56	10.32	70.12	$1.49 \times 10^{6}$	0.44	12.9	18.9
0.4–0.6	20.18	10.51	69.31	$1.53 \times 10^{6}$	0.41	12.2	18.3
0.6–0.8	20.53	10.77	68.70	$1.54 \times 10^{6}$	0.42	11.9	19.1
0.8–1	20.72	11.12	68.26	$1.53 \times 10^{6}$	0.39	11.4	18.5

Note: Physical properties of undisturbed sandy soil = clay 7.73%, silt 6.31%, and sand 85.96%; bulk density $1.43 \times 10^{6} g / m^{3}$ ; porosity 0.46; transmission pores (effective diameter 30 μm–1 mm) occupying 26.5% of the total pore space; and storage pores (effective diameter 200 nm–30 μm) occupying 9.4% of the total pore space. The amount of macro pores (effective diameter 1–10 mm) is tiny and is not taken into consideration.

ASCE regrets the errors.

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Journal of Irrigation and Drainage Engineering

Volume 147 • Issue 11 • November 2021

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Received: Apr 26, 2021

Accepted: Jul 30, 2021

Published online: Aug 30, 2021

Published in print: Nov 1, 2021

Discussion open until: Jan 30, 2022

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Tian Xia [email protected]

Ph.D. Student, School of Civil and Hydraulic Engineering, Ningxia Univ., Yinchuan 750021, China. Email: [email protected]

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Juncang Tian [email protected]

Professor, School of Civil and Hydraulic Engineering, Ningxia Univ., Yinchuan 750021, China; Director, Ningxia Research Center of Technology on Water-saving Irrigation and Water Resources Regulation, Ningxia Univ., Yinchuan 750021, China; Director, Center of Engineering Research on Efficient Utilization of Water Resources in Modern Agriculture in Arid Regions, Ministry of Education, Ningxia Univ., Yinchuan 750021, China (corresponding author). Email: [email protected]; [email protected]

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Wenping Fei [email protected]

Associate Professor, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resources and Hydropower, Sichuan Univ., Chengdu 610065, China. Email: [email protected]

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Erratum for “Experimental Study on the Performance of a Sand Filtration Method and Device by Using Natural Soils and Subsurface PVC Drainage Pipes” by Tian Xia, Juncang Tian, and Wenping Fei

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