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PREFACE

BIBLIOGRAPHY

CONTENTS

TABLES

ANALYTICAL TABLE OF CONTENTS

INTRODUCTION

Contract vs. Municipal Cleaning

Method of Reducing Litter

Street Cleaning Factors and Standards

Schedule of Street Cleaning

Spring Cleaning

Street Sprinkling

Street Cleaning Methods

Machine Sweeping

Pick-up Machines

Cleaning by Flushing

Hose Flushing

Cleaning by Squeegeeing

Disposal of Street Refuse

Relative Cost of Street Cleaning

The Sewerage System

The Degree of Purification of Sewage

Processes of Treatment

Dilution

Screening

Grit Chambers

Straining or Roughing

Treatment in Tanks

Plain Sedimentation

The Septic Process

The Imhoff Tank

Chemical Precipitation

Slate Beds

Dosing Chambers

Contact Filters—Single and Double

Trickling, Percolating or Sprinkling Filters

Intermittent Sand Filters

Broad Irrigation

Disinfection

Activated Sludge Process

Other Processes

Trade Wastes

Sludge Disposal and Value

Management and Supervision

Collection Systems

Methods of Collection

Districting the City

Organization of Collection Force

Type of Equipment

Location of Receptacles

Time of Collection

Frequency of Collection

Enforcement of Collection Regulations

Disposal of Ashes and Rubbish

Revenue from By-Products

Efficiency Tests and Suggestions

Per Capita Production

Cost Data

Types of Collection Systems

Methods of Collection

House Treatment

Organization

Receptacles and Vehicles

Collection Regulations

Cost of Collection

Per Capita Production

Garbage Disposal

Feeding to Swine

Dumping on Land

Dumping in Large Bodies of Water

Disposal by Sanitary Fill

Burial

Disposal Plants

Incineration

Reduction

Drying Process

Cooking Process

Initiating a Campaign

The Organization

Publicity Plans

The Cooperating Forces

Special Activities

Fire Prevention and Inspection

Sanitary Inspection

Flies and Mosquitoes

Results of Campaigns

TRANSCRIBER’S NOTES