Ali Mahdi

Environmental Engineer

Water Treatment Guide for small areas

Chapter 1 Introduction to Drinking Water Treatment

1-1- Water cycle

1-2- Objectives and scope of possible actions

1-3- Limiting factors

Chapter 2 Planning and Organizing

2-1- Introduction

2-2- Data collection: Questionnaire

2-3- Method selection

2-3-1- Water quality

2-3-2- Available resources

2-3-3- Socio-cultural factors

2-4- Decision making

2-4-1- Selecting the site of the refinery

2-4-2- Size

2-4-3- Specifications of individual elements

2-5- In the case of the organization responsible for project implementation

2-5-1- Population participation

2-5-2- Institutional factors

2-5-3- Simultaneous actions

Chapter 3 Treatment Processes

3-1- Introduction

3-2- Aeration

3-2-1- Scope of application

3-2-2- Aerators

3-3- Submission

3-3-1- Applicable areas

3-3-2-Simple sedimentation pools

3-3-3- Design of rectangular sedimentation tank with horizontal flow

3-3-4- The effect of temperature and salt of raw water and wind conditions

3-4- Coagulation and flocculation

3-4-1- Coagulation mechanism

3-4-2- Coagulants

3-4-2-1- Chemicals

3-4-2-2- Materials with soil origin

3-4-2-3- Coagulants of plant origin

3-4-2-4- Other natural coagulants

3-4-3- Jartest test to evaluate the appropriate amount of coagulants

3-4-4- Application

3-4-4-1- Alum and iron salt method

3-4-4-2- Coagulation at the household level with plant and mineral materials

3-5- Filtration

3-5-1- Fast purification

3-5-1-1- Main mechanisms

3-5-1-2- Scope of application

3-5-1-3- Types of fast filters

3-5-1-4- Common filters (low flow)

3-5-1-5- Flow filter

3-5-1-6- Large filters

3-5-1-7- Home size fast filter

3-5-2- Slow sand filter

3-5-2-1- Filtration mechanism

3-5-2-2- Scope of application

3-5-2-3- Slow sand filter design

3-5-2-4- Construction

3-5-2-5- Operation and maintenance

3-5-2-6- Changes

3-6- Disinfection

3-6-1- Chlorination

3-6-1-1- Chlorine function and scope of its application

3-6-1-2- Chemicals

3-6-1-3- Determine the dose of chlorine

3-6-1-4- Practical application

3-6-2- Iodine

3-6-3- Ozonation

3-6-4- Potassium permanganate

3-6-5- Disinfection by silver

3-6-6- Boiling

3-6-7- UV rays

Summary of the first part

The second part: outside the Treatment Plant

Chapter 4 Methods for Finding Groundwater Aquifers

Chapter 5 Traditional methods of water conservation by building small water reserves (pools, swamps …)

Chapter 6 The need to recharge groundwater aquifers

Chapter 7 Simple Water Treatment Methods for Home Use

Chapter 8 Modern water treatment methods