This document provides information from a seminar on proper waste segregation held by the Metropolitan Manila Development Authority Solid Waste Management Office. It defines different types of solid waste, such as biodegradable, recyclable, residual and special waste. It explains how to classify waste according to these categories and where each type of segregated waste is brought. The seminar aims to teach participants about waste sources and management, and to understand the health and environmental impacts of improper waste disposal.