README FILE
Dataset Title: CLI_ICW_WaterQualityMonitoring_2025_v01

GENERAL INFORMATION

Title of Dataset
Clifton Integrated Constructed Wetland (ICW) Water Quality and Phosphorus Dynamics Dataset (2025)

Date of Data Collection
2025

Location of Data Collection
Clifton Integrated Constructed Wetland (ICW), Doncaster, England, United Kingdom

Keywords
Integrated Constructed Wetlands (ICWs), phosphorus dynamics, wastewater treatment, nutrient removal, phosphorus fractionation, ammonium removal, surface flow wetlands, ecological engineering, nature-based solutions, water quality monitoring

Data Collection and Analysis
Ayisha Affo Souleymane
PhD Researcher
School of Water, Energy and Environment
Cranfield University

Collaborating Organisation
Yorkshire Water

Supervisory Institution
Cranfield University

Funding Source
This dataset was generated as part of a PhD research project investigating nutrient dynamics, phosphorus removal, and treatment performance in integrated constructed wetlands.

METHODOLOGICAL INFORMATION

Description of Dataset
This dataset contains primary field and laboratory monitoring data collected from the Clifton Integrated Constructed Wetland (ICW) during 2025.

The dataset includes:

* routine water quality monitoring,
* nutrient analysis,
* phosphorus fractionation,
* and longitudinal treatment performance assessment across multiple wetland compartments.

The dataset was generated to investigate:

* nutrient removal performance,
* phosphorus speciation,
* nitrogen dynamics,
* spatial treatment behaviour,
* and operational performance within a full-scale secondary treatment integrated constructed wetland system.

Description of Data Collection
Water samples were collected from multiple monitoring locations throughout the treatment wetland system, including:

* influent,
* intermediate wetland cells,
* and final outlet locations.

Triplicate samples were collected where applicable.

Measured parameters may include:

* Total Phosphorus (TP)
* Orthophosphate Phosphorus (Ortho-P)
* Dissolved phosphorus fractions
* Particulate phosphorus
* Total Nitrogen (TN)
* Ammonium Nitrogen (NH4-N)
* Total Oxidised Nitrogen (TON/N)
* Total Suspended Solids (TSS)
* Biochemical Oxygen Demand (BOD5)
* Chemical Oxygen Demand (COD)
* Dissolved Oxygen (DO)
* pH
* Temperature
* Total Organic Carbon (TOC)

Analytical Methods

Water Quality Analysis
Water quality analyses were undertaken using standard laboratory analytical procedures and wastewater analytical methods where applicable.

Phosphorus Fractionation
Operational phosphorus fractionation was conducted using filtration and difference-based methods to distinguish:

* particulate phosphorus,
* dissolved phosphorus,
* and colloidal phosphorus fractions.

Fraction definitions were based on membrane filtration approaches using standard pore size separation techniques.

Nutrient Analysis
Nitrogen and phosphorus analyses were undertaken using spectrophotometric and laboratory analytical methods where applicable.

Experimental Conditions
Sampling was undertaken under operational full-scale wastewater treatment conditions within a secondary treatment integrated constructed wetland system.

The dataset reflects varying hydraulic loading, environmental conditions, and treatment behaviour across the wetland treatment train.

Quality Assurance / Quality Control (QA/QC)

* Triplicate measurements were collected where applicable.
* Laboratory analyses followed standard analytical procedures.
* Filtration procedures were standardised across samples.
* Samples were analysed using calibrated laboratory instrumentation.
* Data were checked for transcription and calculation errors prior to analysis.
* Missing values were retained as blank cells where applicable.

SHARING AND ACCESS INFORMATION

License and Restrictions
Dataset generated as part of doctoral research at Cranfield University in collaboration with Yorkshire Water.

Users should acknowledge Cranfield University and Yorkshire Water where appropriate.

Associated Publications
This dataset contributes to ongoing PhD research examining nutrient dynamics, phosphorus removal mechanisms, and treatment wetland performance in integrated constructed wetlands.

Recommended Citation
Souleymane, A. A. (2026). Clifton Integrated Constructed Wetland Water Quality and Phosphorus Dynamics Dataset (2025). Cranfield University.

FILE NAME STRUCTURE AND FORMAT

File Name
CLI_ICW_PDynamics_2025_v01.csv

File Structure
Single comma-separated values (CSV) file containing water quality and nutrient monitoring data.

File Format
CSV (Comma-Separated Values)

Date Format
YYYY-MM-DD where applicable.

DATA-SPECIFIC INFORMATION

Dataset Description
The dataset contains water quality and nutrient monitoring measurements collected from multiple locations within the Clifton ICW during 2025.

Variable Definitions

Water Quality Variables

* TP = Total Phosphorus
* Ortho-P = Orthophosphate Phosphorus
* TN = Total Nitrogen
* NH4-N = Ammonium Nitrogen
* TON/N = Total Oxidised Nitrogen
* TOC = Total Organic Carbon
* TSS = Total Suspended Solids
* BOD5 = Five-day Biochemical Oxygen Demand
* COD = Chemical Oxygen Demand
* DO = Dissolved Oxygen

Units of Measurement
Concentration data are reported in milligrams per litre (mg/L) unless otherwise stated.

Missing Data Codes
Blank cells indicate unavailable or missing measurements.

Abbreviations

* ICW = Integrated Constructed Wetland
* TP = Total Phosphorus
* TN = Total Nitrogen
* NH4-N = Ammonium Nitrogen
* Ortho-P = Orthophosphate Phosphorus
* TOC = Total Organic Carbon
* TSS = Total Suspended Solids
* BOD5 = Five-day Biochemical Oxygen Demand
* COD = Chemical Oxygen Demand
* DO = Dissolved Oxygen

VERSIONING

Version
Version 1.0

Last Updated
2026-05-29

Change Log
Version 1.0 – Initial compilation and documentation of Clifton ICW water quality and phosphorus dynamics dataset.
