This section discusses the characteristics of hazardous wastes typically injected into Class I injection wells. It includes the following:
1. The properties that define a waste as hazardous
2. The sources, amounts, and composition of existing deep-well-injected hazardous wastes
3. Trends and distribution of industrial and hazardous waste injection
4. The design and construction of deep-injection wells
Wastes are defined as hazardous for the purposes of regulatory control in 40 CFR Part 261.4 In this regulation, wastes are classified as hazardous either by being listed in tables within the regulation or by meeting certain specified characteristics. Thus, under 40 CFR Part 261 hazardous wastes are known either as "listed" or "characteristic" wastes. Some listed wastestreams, such as spent halogenated solvents, come from many industries and processes. Other listed wastestreams, such as American Petroleum Institute (API) separator sludges from the petroleum-refining industry, come from one particular industry and one process. A characteristic waste is not listed, but is classified as hazardous because it exhibits one or more of the following characteristics4,5:
1. Toxicity to living organisms
Listed wastes also exhibit one or more of these characteristics. The significance of each of the characteristics listed above is discussed below and is summarized in Table 20.1.3 Deep-well-injected
Was this article helpful?
You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.