Discharge of industrial and

From the beginnings of ecology as a discipline, the mining industry has been at the center of the battle over preservation versus exploitation. As discussed in the introduction to this chapter, human activities such as mining, power production from fossil fuels and discharges of industrial and municipal wastes not only increase the rate at which metals enter the biosphere but may also drastically alter the speciation of metals from what it would be in the undisturbed geologic cycle. [Pg.405]

Chemical and physical degradation of rocks and soils, atmospheric deposition of nickel-containing particulates, and discharges of industrial and municipal wastes release nickel into ambient waters. Nickel enters natural waterways from wastewater because it is poorly removed by treatment processes. The main anthropogenic sources of nickel in water are primary nickel production, metallurgical processes, combustion and incineration of fossil fuels, and chemical and... [Pg.536]

Table 16.16 Typical consent conditions for the discharge of industrial effluent to rivers and streams (UK)...

Large sites might require their own biological treatment processes for final treatment before discharge. Smaller sites might rely on local municipal treatment processes, which treat a mixture of industrial and domestic effluent, for final... [Pg.591]

Chemical pollution From a qualitative point of view, an important common issue is the excess of chemicals (fertilisers and pesticides) associated with agrarian and livestock farming diffuse sources and the point-source discharge of (treated and untreated) sewage water. Industrial point-source pollution is not addressed as a relevant issue, but it is assumed that industries operate following the legal rules and only the incomplete elimination of industrial chemicals in urban wastewater treatment plants is perceived as a problem. [Pg.414]

Bl Source control [households (e.g., water consumption, urine separation and use of kitchen grinders), discharges from industry and reduced infiltration] B2 Injection of oxygen or nitrate... [Pg.207]

Investigate the discharge of a pollutant into rivers of different sizes, flow rates and velocities. What is the best and the worst type of river for the discharge of industrial wastewaters (from the point of view of minimising environmental damage) ... [Pg.575]

Although the marine environment can generally be considered the final destination of industrial and urban wastewater effluents, studies of biodegradation of linear alkylbenzene sulfonates (LAS) in this compartment have been scarce until recently [1—8]. The removal of LAS from the marine medium seems to be an efficient process, as shown by the low levels of LAS detected in samples of both water and sediment [9—11]. High values have only been found in zones close to the direct wastewater effluent discharge points of urban areas [11]. [Pg.620]

However, an issue of concern is the relatively high level of alkylphenolic compounds in both water and sediment upstream of known sources of pollution (WWTPs). The concentrations of total alkylphenolic compounds (APEO, AP and APEC) ranged from 5 to 15 jxg L-1 in water and from 0.075 to 0.55 xg g-1 in sediments, and may be attributed mainly to two origins. One is the use of sewage sludge in agriculture and the other is the uncontrolled discharge of industrial wastewaters in the upper course of the river. [Pg.718]

River pollution from anionic surfactants, the primarily toxic ones, is of two types (a) acute toxic pollution due to, for example, an accidental spill from a container of full-strength surfactant products, and (b) chronic pollution due to the daily discharges of municipal and industrial wastewaters. The international literature contains the result of numerous studies that have established dosages for both types of pollutional toxicity due to detergents, for most types of aquatic life such as species of fish. [Pg.313]

In recent years, concern for the environmental impact of discharges from industrial and energy processes to air, water, and land receptors has expanded far beyond the traditional lists of a few selected pollutants. This has given rise to the concept of a comprehensive characterization of all materials released to the environment, and the phrase environmental assessment has been added to the vocabulary of many organizations. The four major components of an environmental assessment, as used by our group, are as follows [1]... [Pg.29]

All the elements in the Level 1 scheme have been utilized in studies of discharges from industrial and energy processes. The data developed is far too voluminous to be presented here and the results discussed are, therefore, more a demonstration of the utility and viability of selected elements within the scheme. It should also be noted that all the data presented was acquired to evaluate the Level 1 methodology and should not be interpreted as indicative of emissions from the processes studied. [Pg.42]

Because of the spectrum of industrial and consumer uses of diethanolamine and its miscibility with water, large amounts of the chemical can be discharged into wastewater and sewage in an unaltered form (Yordy Alexander, 1981 Mathews etal., 1995). [Pg.353]

As population and industrialization continue to expand, eutrophication has become a problem due to the accelerated aging of bodies of water by the excessive growth of plants and algae attributed to discharges of nitrates and phosphates. These pollutants have imposed demands on engineers to develop cost-effective systems that can eliminate them from water. [Pg.103]

Other related regulations on the management of pesticides are the Environmental Quality Act 1974, the Food Act 1983 and the Occupational Safety and Health Act 1994 (Sufian Yek, 2005). The primary objective of the Environmental Quality Act 1974 is to control the discharge of chemical and industrial wastes including pesticides into the environment, so that there will be no adverse effects on human health and the environment. The disposal of pesticides has not been a significant problem in Malaysia as it is an offence to discharge any toxic waste into the environment. There is a chemical waste treatment facility, which is able to handle all the chemical wastes produced in the country. The Food Act 1983 (under Schedule 16 of its Food Regulation 1985) prescribes the maximum residue levels of certain pesticides in food. The Occupational... [Pg.649]

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