biological process design for wastewater treatment free download

... wall temperatures. The ratio multiplier, A o /A i , is usually omitted for general process design from the r i factor for inside fouling. For thin- walled (18 — 12 ga) and highly conductive metal tubes, ... Delhi 66131_Ludwig_FM 5/30/2001 4:04 PM Page iii 42 Applied Process Design for Chemical and Petrochemical Plants Figure 10-25E. Tubesheet layout for U-tube exchanger. Tube passes: two or four. Tube ... the per- formance of an exchanger in a specific process service, they cannot and most likely will not accept responsibility for the fouling effects on the heat transfer surface. Therefore, the owner...

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... hexadecyl-sulfate, Biotechnology for Industrial and Municipal Wmtes 17 8 Biotechnology for Waste and Wastewater Treatment 4 Biotechnology for Waste and Wastewater Treatment Cell material ... are used in biological treatment are listed in Table 1 along with the treatment agents and typical wastes that are treated. TABLE 1 METHODS OF BIOLOGICAL TREATMENT Process Treatment ... aerobic treatment) . Any one or more of these transport rates can be the controlling factors that determine the process efficiency. Types of Biological Processes Biological treatment processes...

Ngày tải lên: 16/03/2014, 18:11

... BIOTECHNOLOGY FOR INDUSTRIAL AND MUNICIPAL WASTES 1 Wastewater Treatment 3 BOD Removal 5 Types of Biological Processes 5 Municipal Wastewater 6 Activated Sludge Process ... aerobic treatment) . Any one or more of these transport rates can be the controlling factors that determine the process efficiency. Types of Biological Processes Biological treatment processes ... suspension or motion. Content 8 Biotechnology for Waste and Wastewater Treatment Content Content 34 Biotechnology for Waste and Wastewater Treatment Suspended Growth Systems Suspended-growth...

Ngày tải lên: 16/03/2014, 18:11

... were written for engineers on the design team, the process hazard analysis team, and the people who make the basic decisions on plant design. Engineering design for process safety ... 535 Table 17-5 Combustible-Dependent Constants for Low-Strength Enclosures 552 Guidelines for Engineering Design for Process Safety CENTER FOR CHEMICAL PROCESS SAFETY of the AMERICAN INSTITUTE ... for Different Process Equipment 119 Table 4-2 Basic Considerations for All Fired Equipment 132 Table 4-3 Process Vessels: Special Material Concerns 136 Table 4-4 Checklist for Design ...

Ngày tải lên: 03/07/2014, 12:20

... of protection—the process design. The best first line of defense is to design a process in which hazardous incidents cannot happen. If such a process can be designed, or if ... suggestions for future development. Chemistry of side reactions and by-products may also offer opportunities for increasing the inherent safety of a process. For example, a process ... sulfuric acid) for sulfona- tion reactions If a chemical process requires the concentrated form of a material, it may be feasible to store it as a more dilute form and concentrate ...

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... median period of pain relief being 5 months. The range of relief for the radiofrequency group was from zero days to 16 months for all 26 patients who underwent the radiofrequency procedure. ... patients reported significant pain improvement for at least 36 months postoperatively. This durable effect is particularly promising, given the propensity for facet joint pain to return following ... re-innervating the joint. In this study we investigate the long-term effi- cacy of facet debridement for the treatment of chronic back pain originating in the facet joint. MATERIALS AND METHODS Patient...

Ngày tải lên: 26/10/2012, 09:32

... International Publisher. All rights reserved Research Paper Endoscopic thoracic laminoforaminoplasty for the treatment of thoracic radiculopathy: report of 12 cases Scott M.W. Haufe 1,2  , ... efficacious intervention for thoracic stenosis, whether central or foraminal, refractory to conservative management is uncertain. We aimed to evaluate the efficacy of endoscopic laminoforamino- plasty ... or foraminal stenosis treated with endoscopic laminoforaminoplasty via a small incision, of less than one inch. Materials and Methods Twelve patients were treated with endoscopic laminoforaminoplasty...

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