Sewage disposal plants

Pulsar. [Olin] Calcium hypochlorite dry chlorinating agent fw industrial sanitation treatment, food and beverage plants, sewage disposal, agiic. q)plics. 

Natural Waters. Many water systems have a natural tendency to produce foam upon agitation. The presence of poUutants exacerbates this problem. This was particularly severe when detergents contained surfactants that were resistant to biodegradation. Then, water near industrial sites or sewage disposal plants could be covered with a blanket of stable, standing foam (52,59). However, surfactant use has switched to biodegradable molecules, which has gready reduced the incidence of these problems. 

There may be many types of the drives in an industry, particularly when it is a process industry. The most common drives are fans, pumps, and compressors etc., employed for the various utilities, storage and process activities of the plant. The plant may be chemical or a petrochemical, water treatment or sewage disposal, paper and pulp unit or even a crane or a hoist application. 

Abwasser, n. waste water, waste liquor specif., sewage. anlage, /. sewage disposal plant, leitung, /. drain. 

The direct method for sewage disposal was originally developed for use on space vehicles where the hydrogen would be transduced in fuel cells to on-board electricity. The C02 evolved would be used for growing plants on board. 

Required Fuel Contents for Sewage Disposal by Means of Supercritical Wet Oxidation (SCWO) in a Pilot Plant Containing a Wall Cooled Hydrothermal Burner (WCHB)... 

In 1946, the problem was demonstrating that the most fundamental assumptions did in fact hold. Initially, this meant obtaining measurements of the natural radiocarbon concentrations in living organics to see if it occurred in the amount expected and if the worldwide distribution of radiocarbon was essentially constant. An experiment was devised whereby biological methane gas derived from the sewage disposal plant at Baltimore, MD and petroleum methane from the Sun Oil Co. refinery were each enriched by a similar factor in a thermal diffusion column. It was assumed that the petroleum methane contained no because of its age in excess of many tens of millions of years whereas the biological methane contained about 17-18 dpm radiocarbon per g of carbon. The experiment was conducted, and the results confirmed the calculations (26). 

Many coastal ecosystems have elevated levels of metals and radionuclides (14). Anthropogenic sources of stable isotopes of metals include sewage disposal plants, electroplating plants, and mining and dredging operations sources of radioactive isotopes include effluents from nuclear power plants and submarines, medical establishments, and uranium ore mining. The pollution from most of these operations results from routine or accidental discharges and are either continuous or episodic. 

Odour mitigation in the food industry, sewage treatment plants, animal carcass rendering plants, composting plants, waste disposal plants and refuse pits. 

Samples of biological methane ( biomethane ) obtained from a sewage disposal plant in Baltimore, Md., and of petroleum methane ( pe-tromethane ) from an oil refinery were enriched by equal amounts of in a thermal diffusion column. Whereas the activity of the biomethane increased in direct proportion to the amount of enrichment, there was no significant increase in the counting rate of the petro-methane with enrichment (4). The confirmation of Libby s prediction initiated an extensive study of the distribution of in nature. However,... 

The problem of the disposal of cyanide waste has become increasingly important because sewage disposal regulations in many communities require the removal of wastes that are toxic to plant and animal life. 

A sewage disposal plant has a big concrete holding tank of 100,000 gal capacity. It is three-fourths full of liquid to start with and contains 60,000 lb of organic material in suspension. Water runs into the holding tank at the rate of 20,000 gal/hr and the... 

As a rule, point-source pollution sites are easily identified (large chemical plants, sewage treatment, military bases, etc.) and can be dealt with more or less satisfactorily by means of regulation and/or public pressure. In contrast, non-point-source pollution (homes, restaurants, dry cleaning establishments, etc.) are far more numerous, widely distributed, and therefore more difficult to identify and regulate. It is particularly important that these smaller sources of pollution adopt the desired pollution prevention attitude. Small colleges are one example of an intermediate source of pollution in which several departments and offices on campus may use, store, and dispose of pollutants quite independently of one another. 

Milorganite. TM for blended fertilizer containing approximately 20% of an activated sludge marketed in dry granular form by the Milwaukee sewage disposal plant. Contains 5-10% moisture, 6.5-7.5% ammonia, 2.5-3.5% available phosphoric... 

Bartow (1922) says, It is conceded that the activated sludge process is the most perfect method of sewage disposal at the present time. Its growth in America and European countries has been quite widespread. Since the discovery of the process early in 1914, the method has been adopted for several municipalities and an exceeding large number of experimental plants have been put in operation. ... 

Sanitation. Sanitation in the plant as affecting conditions outside the plant is a process problem, and care must be taken in considering (1) the potable water supply and its protection from contamination by the plant or outside sources, (2) sanitary plumbing, (3) drainage, and (4) waste and sewage disposal. 

Nickel concentrations are comparatively elevated in aquatic plants and animals in the vicinity of nickel smelters, nickel-cadmium battery plants, electroplating plants, sewage outfalls, coal ash disposal basins, and heavily populated areas. For example, at Sudbury, Ontario, mean nickel concentrations, in mg/kg DW, were 22.0 in larvae of aquatic insects, 25.0 in zooplankton, and 290.0 in aquatic weeds maximum concentrations reported were 921.0 mg/kg DW in gut of crayfish (Cambarus bartoni) and... 

Hatton, T.C. (1922). Deposition of sludges resulting from sewage disposal plants. Trans. ASCE 85 448-450. P Howson, G.W. (1917). Discussion of Multiple-arch dams on Rush Creek, California. Trans. ASCE 81 900-901.(P)... 

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