Transcription of CHAPTER 6 WASTEWATER TREATMENT PROCESSES
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CHAPTER 6 WASTEWATER TREATMENT PROCESSES
TM 5 - 8 1 4 - 8. CHAPTER 6. WASTEWATER TREATMENT PROCESSES . 6-1. Preliminary and Primary waste - further classified as manually or mechanically water TREATMENT PROCESSES cleaned. Coarse screens are used in preliminary TREATMENT , while fine screens are used in lieu of a. Introduction. Preliminary TREATMENT of sedimentation preceding secondary TREATMENT or WASTEWATER generally includes those PROCESSES as a step in advanced WASTEWATER TREATMENT . Fine that remove debris and coarse biodegradable screens as a preliminary or primary TREATMENT are material from the waste stream and/or stabilize more applicable to process or industrial wastes. the WASTEWATER by equalization or chemical addi- TM 5-814-3 provides detailed descriptions of tion. Primary TREATMENT generally refers to a these units and design considerations. sedimentation process ahead of the main system (b) Comminution. A comminutor acts as or secondary TREATMENT . In domestic WASTEWATER both a cutter and a screen.
industrial waste treatment, preliminary or pri-mary treatment may include flow equalization, pH adjustment or chemical addition that is ex-tremely important to the overall treatment pro-cess. Table 6-1 liss the typical effluent levels by degree of treatment. This section of the manual will discuss the various types of preliminary and
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