Deep-well injected wastes composition

Sources, Amounts, and Composition of Deep-Well-Injected Wastes. 785... 

The sources, amounts, and composition of injected hazardous wastes are a matter of record, because the Resource Conservation and Recovery Act (RCRA)5,14 requires hazardous waste to be manifested (i.e., a record noting the generator of the waste, its composition or characteristics, and its volume must follow the waste load from its source to its ultimate disposal site). The sources and amounts of injected hazardous waste can be determined, therefore, based on these records. Table 20.2 shows the estimated volume of deep-well-injected wastes by industrial category.3 More than 11 billion gallons of hazardous waste were injected in 1983. Organic chemicals (51%) and petroleum-refining and petrochemical products (25%) accounted for three-quarters of the volume of injected wastes that... 

The sources, amounts, and composition of existing deep-well-injected hazardous wastes... 

Additional chemical data are given in Table 16.1. As mentioned, the composition of injected waste was changed in the middle of 1968, when neutralization was dropped. As a result, the pH went down to 3.3 and the nitrate concentration went up. The deep monitoring well responded in the following way (Table 16.1) the October 1967 and May 1968 analyses... 

In other words, up to May 1968 the chlorine-rich aquifer water was diluted by 26% with injected chlorine-devoid water. The newer, nonneutralized waste with pH 3.3 caused a remarkable change in the composition of the fluid at the deep monitoring well chlorine dropped to 160 mg/1, indicating the deep monitoring well was dominated by 98% injected water ... 

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