ManageChatDiscover
1883

Land Application of Water Treatment Residuals: Effects on Heavy Metals Availability

Article

Last updated: 01 Jan 2025

OverviewSimilar Items

Subjects

-

Tags

Environmental soil & water Chemistry

Abstract

Concerns over the possible increase in phytoavailability ofwater treatment residual (WTR)-applied trace metals to plants have been raised. The fate of WTR metals applied to agriculturalsoils is not well understood, particularly in the soils of thearid region. This investigation was conducted to assess the effect of WTR application rates on chemical extractabilityand concentration of Cd, Cu, Ni, and Pb in wheat  plants. Five alum rates (0, 10, 20, 30 and 40g kg-1) were applied to three alkaline soils (calcareous, sandy and clayey soils). Wheat (Triticum aestivum) seeds   were planted in pots after WTR application. Extractable Cd, Cu, Ni, and Pb (as measured by  AB-DTPA, and soil solution) were determined after wheat harvest .No adverse effects on plant growth or excessive amounts of metaluptake were noted after application.The metal concentrationsin wheat plants were lower in the WTR treatments than inthe control and remained well within the values observed foruncontaminated soils. Noneof the trace metals attained toxic concentrations. However, it is crucial to understand the long-term effects that applicationof WTR has on metal availability.Correlations between the concentrations of Cd, Cu, Ni, and Pb in roots ,shoots and panicles  of wheat plants  and soil metalsextracted by AB- DTPA and soil solution  were variable. The strength of the correlationbetween metal concentration in plants and extractable levelsin soil solution was greater for Pb and Cd  than Cu and Ni. Copper concentrationsin plants were better predicted by the AB-DTPA extractant. The soil solution better predicted  availabilityof Cd (r=0.40 , p < 0.01) and Pb (r=0.60 , p < 0.001) than AB-DTPA. 

DOI

10.21608/asejaiqjsae.2007.1883

Authors

First Name

Elsayed

Last Name

A. Elkhatib

MiddleName

-

Affiliation

Department of Soil and Water, College of Agriculture (Elshatby), Alexandria University, Alexandria, 21545, Egypt.

Email

-

City

-

Orcid

-

First Name

Ahmed

Last Name

M. Mahdy

MiddleName

-

Affiliation

Department of Soil and Water, College of Agriculture (Elshatby),Alexandria University, Alexandria, 21545, Egypt.

Email

amahdy73@yahoo.com

City

-

Orcid

-

Volume

28

Article Issue

JULY- SEPTEMBER

Related Issue

394

Issue Date

2007-07-01

Receive Date

2007-08-25

Publish Date

2007-07-01

Page Start

148

Page End

157

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 28_Issue JULY- SEPTEMBER_Pages 148-157.pdf

PDF . 545.3kB

Link

https://asejaiqjsae.journals.ekb.eg/article_1883.html

Detail API

https://asejaiqjsae.journals.ekb.eg/service?article_code=1883

Order

9

Type

Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

https://asejaiqjsae.journals.ekb.eg/

MainTitle

Land Application of Water Treatment Residuals: Effects on Heavy Metals Availability

Details

Type

Article

Created At

22 Jan 2023