**4. Types of municipal solid waste**

A classification of solid waste sources can be accomplished based on the following assumptions:


Private households, hotels, offices, stores, educational, and other institutions are causes of municipal solid waste generation. The lion's share of solid waste encompasses organic (mainly food or horticulture) waste, cardboard, paper, plastics and other resins, textile rags, metal, and glass; in many cases, even demolition and construction debris is included in collected waste, in addition to certain quantities of precarious waste, such as batteries, electric light bulbs and fluorescent tubes, automotive parts, expired medicines and other pharmaceutical

#### **Figure 1.**

*A hypothetical urban municipality and the geographic areas (1. Urban, 2. Industrial, 3. Rural) where solid waste is generated [9].* 


#### **Table 1.**

*Sources and types of solid wastes [10].* 

products, and diverse chemicals, e.g., cleaning and cosmetic products [10]. Hence, the main sources of solid waste are private households and the agricultural, industrial, construction, commercial, and institutional sectors. An assignment of different types of solid waste to their individual sources is shown in **Table 1**.
