Beta
124334

Effect of Loading Rates in Free Water Surface Constructed Wetlands for Treating Polluted Water, Case Study: Bahr El-Baqar Drain.

Article

Last updated: 04 Jan 2025

Subjects

-

Tags

Civil Engineering

Abstract

Disposing partially treated or untreated domestic and industrial wastewater into Egyptian drains violates their water quality standards and makes drains water unsuitable for reuse and pollute the receiving water body. A growing interest in effective low-cost treatment of polluted water and wastewater has brought many researches on constructed wetlands (CWs). Many CWs have been commissioned to treat various types of waters such as urban, agricultural runoff, municipal, industrial wastewaters, and acid mine drainage. This study evaluate a free water surface (FWS) CWs -(by far the largest application CWs in Egypt)- used to enhance water quality in Bahr El Baqar drain which located on the northeastern edge of the Egyptian Nile Delta, and discharge its water to Lake Manzala which has many fishing activities and connect to the Mediterranean Sea. The full capacity of the system is 25000 m3/d, the amount of water is divided to three parts; five FWS CWs beds of high flow rate "HFR" of 0.344 m3-/m3-d, five FWS CWs beds of low flow rate "LFR" of 0.048 m/m'-d and reciprocated cells of flow 500 m3ld. The concentrations of different contaminants along the CWs system were measured and analyzed for an assessment and modeling of treatment efficiency. The effluent was compared with the Egyptian regulation of water quality in agricultural drains (Law 4/1994). Due to the high percent of agriculture drains, the concentrations of contaminants in the influent were relatively low, thus the percentages of removal for the different contaminants were as follows: BODs (52%), COD (50%), TSS (87%), TDS (32%), NH4-N (66%), POs (52%), Fe (51%), Cu (36%), Zn (47%) and Pb (52%). The natural vegetation also increased the value of dissolved oxygen in the treated effluent considerably. There was little difference in the removal efficiencies between the HFR and LFR beds in the system. 

DOI

10.21608/bfemu.2020.124334

Keywords

Polluted drain water, constructed wetlands, Free Water Surface, hydraulic loading rates, nutrient removals, trace metals

Authors

First Name

Mahmoud

Last Name

Elsheikh

MiddleName

Abd El-Shafy

Affiliation

The head of Civil Engineering Department and Professor of Sanitary and Environmental Engineering at Civil Engineering Department., Menoufia University., Egypt.

Email

mshafy2@yahoo.com

City

Menoufiya

Orcid

-

First Name

Hazem

Last Name

Saleh

MiddleName

I.

Affiliation

Civil Engineering Dept., Faculty of Enngineering, Menoufia University, Shebeen ElKom, Egypt

Email

-

City

Menoufiya

Orcid

-

First Name

Diaa

Last Name

El Quosy

MiddleName

-

Affiliation

Director of Lake Manzala Engineering Wetland., Ismailia., Egypt.

Email

-

City

Ismailia

Orcid

-

First Name

Abdallah

Last Name

Mahmoud

MiddleName

A.

Affiliation

Civil Engineering Department., Faculty of Engineering., Zagazig University., Zagazig., Egypt.

Email

-

City

Zagazig

Orcid

-

Volume

35

Article Issue

1

Related Issue

17860

Issue Date

2010-03-01

Receive Date

2010-01-11

Publish Date

2020-12-01

Page Start

55

Page End

66

Print ISSN

1110-0923

Online ISSN

2735-4202

Link

https://bfemu.journals.ekb.eg/article_124334.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=124334

Order

20

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

Effect of Loading Rates in Free Water Surface Constructed Wetlands for Treating Polluted Water, Case Study: Bahr El-Baqar Drain.

Details

Type

Article

Created At

22 Jan 2023