A Case Study of Chlorinated Hydrocarbons in Disposal of Sewage Sludge to Sea

Wastewater and sewage sludge contain organic matter that can be valorized through conversion into energy and/or green chemicals. Moreover, resource recovery from these wastes has become the new focus of wastewater management, to develop more sustainable processes in a circular economy approach. The aim of this review was to analyze current sewage sludge management systems in Scandinavia with respect to resource recovery, in combination with other organic wastes. As anaerobic digestion (AD) was found to be the common sludge treatment approach in Scandinavia, different available organic municipal and industrial wastes were identified and compared, to evaluate the potential for expanding the resource recovery by anaerobic co-digestion. Additionally, a full-scale case study of co-digestion, as strategy for optimization of the anaerobic digestion treatment, was presented for each country, together with advanced biorefinery approaches to wastewater treatment and resource recovery.

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Effect of future environmental laws on the WWTP sustainability in Algeria – case study on phosphorus discharges and sewage sludge management

10.5004/dwt.2021.26545 ◽

2021 ◽

Vol 209 ◽

pp. 437-446

Author(s):

Mehdi Belhani ◽

Hamouda Boutaghane ◽

Rym-Asma Boufas

Keyword(s):

Sewage Sludge ◽

Sludge Management ◽

Environmental Laws ◽

Sewage Sludge Management

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Case study involving using fluidised bed incinerator sludge ash as a partial clay substitute in brick manufacture

Water Science & Technology ◽

10.2166/wst.1996.0470 ◽

1996 ◽

Vol 34 (3-4) ◽

pp. 507-515 ◽

Cited By ~ 7

Author(s):

Michael Anderson ◽

R. Glynn Skerratt ◽

Julian P. Thomas ◽

Stephen D. Clay

Keyword(s):

United Kingdom ◽

Sewage Sludge ◽

Ceramic Technology ◽

Mix Design ◽

Fluidised Bed ◽

Sewage Sludge Ash ◽

The United Kingdom ◽

Physical Testing ◽

Sludge Ash

Earlier work at Staffordshire University revealed encouraging results when sewage sludge ash from a fluidised bed incinerator was added to a series of common commercial brickclays used in the United Kingdom. The results of this work led a United Kingdom brick manufacturer to the identification of this material as a possible replacement for the sand addition to the bricks produced at one of their factories. As a result, an experimental programme was formulated at Staffordshire University's Ceramic Technology Laboratory which used the factory's current mix-design as a control standard against a mix-design in which the sand component was replaced weight-for-weight with sewage sludge ash. Comparative bodies were fabricated and both laboratory and factory firings undertaken. Physical testing results have revealed that the experimental mix-design containing the sewage sludge ash contributes positively to the ceramic properties of the control product in both the unfired and fired condition. Moreover, the fired colour of this experimental product has also been found to be indistinguishable from the control.

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