Sustainable reuse options of treated effluents: a case study from Muscat, Oman

A study was carried out to characterize dye industry effluent by measuring its various physicochemical characteristics and trace heavy metals and to asses its quality to be used as an alternate means of irrigation. As a case study the results obtained from the investigation of effluent of the Bangladesh Dyeing and Finishing Industries Ltd., Karnapara, Savar are reported in this study. The direct effluent (untreated effluent) and after it was treated in the laboratory (treated effluent) were investigated. As groundwater is a part of the effluent, it was also analysed. The average pH values of the untreated and treated effluents were found to be 7.83 and 5.13, respectively. The EC values of the untreated effluent (1.81mS cm-1) and treated effluent (2.01 mS cm-1) were found to be higher than that of groundwater (0.93 mS cm-1). No significant variation in pH and EC values of monthly collected effluent samples was observed. The average concentrations of trace elements except Fe were found to be lower than their DoE recommended values for irrigation land. The concentrations of Na and K in the untreated effluent were found to be higher and the Ca and Mg concentrations lower than those of the treated effluents. Assessment of the untreated and treated effluent was made based on their EC, the sodium adsorption ratio (SAR) and soluble sodium percent (SSP), COD and heavy trace metal contents. From the overall assessment, the treated effluent was found to be suitable for irrigation. DOI: 10.3329/jbas.v33i1.2954 Journal of Bangladesh Academy of Sciences, Vol. 33, No. 1, 99-106, 2009

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Sustainable sewerage servicing options for peri-urban areas with failing septic systems

Water Science & Technology ◽

10.2166/wst.2010.205 ◽

2010 ◽

Vol 62 (3) ◽

pp. 570-585 ◽

Cited By ~ 10

Author(s):

A. K. Sharma ◽

G. Tjandraatmadja ◽

A. L. Grant ◽

T. Grant ◽

F. Pamminger

Keyword(s):

Rural Community ◽

Urban Areas ◽

Septic Systems ◽

Environmental Implications ◽

Sustainable Solutions ◽

Fit For Purpose ◽

Water And Wastewater ◽

Reuse Options ◽

Selection Of

The provision of water and wastewater services to peri-urban areas faces very different challenges to providing services to cities. Sustainable solutions for such areas are increasingly being sought, in order to solve the environmental and health risks posed by failing septic systems. These solutions should have the capability to reduce potable water demand, provide fit for purpose reuse options, and minimise impacts on the local and global environment. A methodology for the selection of sustainable sewerage servicing systems and technologies is presented in this paper. This paper describes the outcomes of applying this methodology to a case study in rural community near Melbourne, Australia, and describes the economic and environmental implications of various sewerage servicing options. Applying this methodology has found that it is possible to deliver environmental improvements at a lower community cost, by choosing servicing configurations not historically used by urban water utilities. The selected solution is currently being implemented, with the aim being to generate further transferable learnings for the water industry.

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Study of urban population attitudes towards various wastewater reuse options: Israel as a case study

Journal of Environmental Management ◽

10.1016/j.jenvman.2005.11.013 ◽

2006 ◽

Vol 81 (4) ◽

pp. 360-370 ◽

Cited By ~ 60

Author(s):

Eran Friedler ◽

Ori Lahav ◽

Hagar Jizhaki ◽

Tali Lahav

Keyword(s):

Urban Population ◽

Wastewater Reuse ◽

Reuse Options ◽

Population Attitudes

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The Genesis and Internal Dynamics of El Salvador's People's Revolutionary Army, 1970–1976

Behavioral and Brain Sciences ◽

10.1017/s0140525x13009850 ◽

2014 ◽

Vol 38 (01) ◽

pp. 102-129

Author(s):

ALBERTO MARTÍN ÁLVAREZ ◽

EUDALD CORTINA ORERO

Keyword(s):

Latin America ◽

El Salvador ◽

Early Years ◽

Left Wing ◽

Internal Dynamics ◽

Internal Coherence ◽

The 1960S

AbstractUsing interviews with former militants and previously unpublished documents, this article traces the genesis and internal dynamics of the Ejército Revolucionario del Pueblo (People's Revolutionary Army, ERP) in El Salvador during the early years of its existence (1970–6). This period was marked by the inability of the ERP to maintain internal coherence or any consensus on revolutionary strategy, which led to a series of splits and internal fights over control of the organisation. The evidence marshalled in this case study sheds new light on the origins of the armed Salvadorean Left and thus contributes to a wider understanding of the processes of formation and internal dynamics of armed left-wing groups that emerged from the 1960s onwards in Latin America.

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