China - Guangdong Pearl River Delta Urban Environment Project : environmental assessment (Vol. 5 of 6) : Guangzhou section water quality modelling report

PEOPLE'S REPUBLIC OF CHINA GUANGDONG PROVINCIAL GOVERNMENT THE WORLD BANK E829 Volume 5 GUANGDONG PEARL RIVER DELTA URBAN ENVIRONMENT PROJECT DESIGN REVIEW AND ADVISORY SERVICES ENVIRONMENTAL AsSESSMENT VOLUME 5: GUANGZHOU SECTION WATER QUALITY MODELLING REPORT NOVEMBER 2003 No. 035 5073 - R3-Volume 5 INCOLLABORATION IN WITH SOGREAH ':L CTO   PEOPLE'S REPUBLIC OF CHINA GUANGDONG PROVINCIAL * SOGR-{AH GOVERNMENT ._ N .. - I C(I 1AN rs . THE WORLD BANK GUANGDONG PEARL RIVER DELTA URBAN ENVIRONMENT PROJECT ENVIRONMENTAL ANALYSIS - GUANGZHOU SECTION WATER QUALITY MODELLING REPORT IDENTIFICATION N0: 355073.R3.V5 DATE: OCTOBER 2003 This document has been produced by SOGREAH Consultants as part of the FASEP Grant (French Government Grant) to Guangdong Provincial Government (Job Number 355073) This document has been prepared by the project team under the supervision of the Project Director following the Quality Assurance Procedures of SOGREAH in compliance with IS09001. APPROVED BY INDEX PURPOSEOFMOOIFICAnoN DATE AUTHOR CHECKED BY (PROJECT MANAGER) A First Issue 26/10/03 COR,GD BYN GDM M INDEX DiSTRIBUTION LIST CONTACTADDRESS I GPG PMO (Mr ZENG Yu Chang) 2 GMG PMO (Mr ZHAN Yishan) 3 The World Bank (Mr Tom Zearley, tzearlev(aworldbank.org, Hao Zhang) hzhana2Ri)worldbank.orq 4 DREE (DREE Paris, PEE Canton) Josselin.kalifaCoDdree.ora Alain..queauenasoareah.fr, SOGREAH (Head Office, Beijing Annabelle.menpottiasopreah.fr, 5 OGReA ( edgard.valettea-sopreah.fr Office) biofficea.soareah.com.cn  I  GUANGDONG PROVINCIAL GOVERNMENT- THE WORLD BANK GUANGDONG PEARL RIVER DELTA URBAN ENVIRONMENT PROJECT DESIGN REVIEW AND ADVISORY SERVICES R3V5: GUANGZHOU SECTION WATER QUALITY MODELLING REPORT TABLE OF CONTENTS TABLE OF CONTENTS ................................................ I LIST OF TABLES ................................................ v LIST OF FIGURES ................................................ Vill APPENDICES ................................................ x ABBREVIATIONS, ACRONYMS AND UNITS ................................................ XI EXECUTIVE SUMMARY .................................................XII 1. INTRODUCTION ................................................. I 1.1. THE GUANGDONG PEARL RIVER DELTA URBAN ENVIRONMENT PROJECT ................................................ 1 1.2. SCOPE OF THE STUDY ................................................ 2 1.3. PURPOSE & SCOPE OF THIS REPORT ................................................ 3 1.4. ORGANISATION & LAYOUT OF THE EA REPORT ................................................ 5 2. DESCRIPTION OF THE PEARL RIVER DELTA ................................................ 6 3. CONSTRUCTION OF THE HYDRAULIC MODEL ................................................. 9 3.1. PREVIOUS MODELLING OF THE GUANGZHOU SECTION ................................................ 9 3.2. TOPOLOGICAL DATA USED ................................................I 1 3.3. HYDRAULIC INFORMATION USED ................................................ 13 3.4. COMPLEMENTARY INFORMATION COLLECTED ................................................ 16 3.4.1. BED RIVER ROUGHNESS ................................................ 16 3.4.2. CARIMA MODEL ................................................ 16 4. CALIBRATION OF HYDRAULIC MODEL ................................................ 17 4.1. ADAPTATION OF SECTIONS & HYDRUALIC MODEL ................................................ 18 4.2. FINAL MODEL RESULTS ................................................ . 18 5. POLLUTION MODEL ................................................. 20 5.1. DESCRIPTION OF POLLUTION MODEL FOR THE GUANGZHOU SECTION ................................................ 20 5.1.1. POLLUTANT LOAD CALCULATIONS ................................................ 20 5.1.2. BOUNDARY CONDITIONS ................................................ 22 5.1.3. POLLUTANT REACTIONS ................................................ 23 5.2. CALIBRATION OF POLLUTION MODEL ................................................ 24 5.2.1. DATA USED IN CALIBRATION ................................................ 24 5.2.2. RESULTS OF CALIBRATION ................................................ 27 SOGREAH - BYN- REPORT N