In this sequel volume to ACS Symposium Series No. 422, Emerging Technologies in Hazardous Waste Management, the editors expand their coverage of the subject with contributions on air treatment, as well as a greater examination of computer applications and modeling. Twenty-one chapters are divided into four sections covering thermal treatment and abiotic emissions control, water management, biological treatment, and solid waste management. Of special interest is a presentation on the use of internal radiant energy within a gas-fired combustion chamber to maintain high combustion temperatures, a technique that appears important for the thermal destruction of many chlorinated species.