A review on alum sludge reuse with special reference to agricultural applications and future challenges

Dassanayake, K. B.; Jayasinghe, G.Y.; Surapaneni, Aravind; Hetherington, C.

doi:10.1016/j.wasman.2014.11.025

Cited by 237 publications

(118 citation statements)

References 109 publications

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“…Phosphorous containing compounds are involved in energy capture during photosynthesis, carbohydrate metabolism, protein and nucleic acid synthesis. Phosphorous is absorbed into plant in the form of phosphates through an energy requiring process [14,15,16,17]. Phosphorous levels varied in between 4.6-5.4 gkg -1 .…”

Section: Moisture Content Variationmentioning

confidence: 99%

Co-digestion of Poultry Sludge Filter Pressed Cake with Market Waste to Enhance the Compost Quality

2016

IJAAEE

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Abstract-Huge quantities of market waste (MW) materials are generated yearly in Sri Lanka as organic waste and, in present, composting is regarded as one of the sustainable technique in waste management. The removal of solid waste is the last operation of solid waste management. Currently, the wastewater treatment plant of "Nelna" farm in Gampaha, Sri Lanka has been generating almost one tonne of poultry sludge filter pressed cake (PSFC) per day as a waste from the poultry industry. While the unsystematic disposal of PSFC may cause not only air pollution and bad odor but also nutrient pollution of ground waters and inland water bodies, compost research studies were conducted as one of the environmentally acceptable methods for recycling several types of sludge. Co-digestion was studied in order to discover the optimum mixing ratio of PSFC and MW for improved quality compost production. Four different types of treatments were prepared with three replicates by mixing PSFC and MW at the rates of; (T1) 0% PSFC + 100% MW, (T2) 25% PSFC + 75% MW, (T3) 50% PSFC + 50% MW and (T4) 75% PSFC + 25% MW respectively. Physical and chemical characteristics of developed composts were analyzed after 10 weeks.Treatment (T2) with 25% PSFC +75% MW reported the optimum physical and chemical properties with reference to standard compost. Bulk density, true density, moisture content, mean weight diameter and coarseness index of the treatment with 25% PSFC +75% MW were 0.41 gcm -3 , 1.42 gcm -3 24.35%, 0.054 mm and 32.2%, respectively. Furthermore, electrical conductivity, pH, organic carbon, nitrogen, phosphorous, potassium and C: N ratio of the above treatment (25% PSFC +75% MW) were 5.61 dS/m, 7.5, 24.17 %, 2.45%, 0.54%, 1.8%, and 9.8, respectively.

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Section: Moisture Content Variationmentioning

confidence: 99%

Co-digestion of Poultry Sludge Filter Pressed Cake with Market Waste to Enhance the Compost Quality

2016

IJAAEE

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“…Thus water treatment sludge has to be 'individually' treated for each water treatment plant, especially in terms of possibilities for subsequent disposal. There are many ways to dispose and reuse of water treatment sludge including [2][3][4]:…”

Section: Introductionmentioning

confidence: 99%

Effect of ultrasonic and thermal disintegration of water treatment sludge

2018

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Abstract. This research was conducted to evaluate the effects of thermal and ultrasound disintegration on the disintegration degree (DD) of water treatment sludge from a municipal water treatment plant. A disintegration process was used to (i) improve subsequent coagulation efficiencies and dewatering processes (ii) reduce sludge production, and (iii) obtain both economic and enviromental benefits. The results show that using the disintegration process has an influence on DD values. It is also worth emphasising that the main parameter determining the efficiency of ultrasonic and thermal disintegration was the time of the applied process. Other parameters such as ultrasound intensity and temperature had a reduced impact on DD values.

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“…The literature offers many publications on water sludge, in which its composition is described [4][5][6][7] as well as the methods of its cultivation and utilization [8][9][10][11][12]. Water sludge is mostly used as coagulant and phosphorus recovery from wastewater, as a coagulant in wastewater treatment, for heavy metal immobilization, production of ceramics or cement, land reclamation, sludge dewatering and also as a fertilizer in farming and forestry [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Water sludge is mostly used as coagulant and phosphorus recovery from wastewater, as a coagulant in wastewater treatment, for heavy metal immobilization, production of ceramics or cement, land reclamation, sludge dewatering and also as a fertilizer in farming and forestry [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Possible Co-fermentation of Water and Sewage Sludge

Górka

Cimochowicz-Rybicka

2017

E3S Web Conf.

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Abstract.The article describes problems related to intensification of energy production at a wastewater treatment plant. The authors analyzed anaerobic co-digestion of sludge from both water treatment plant and sewage treatment plant. Water sludge is produced during coagulation, ozonation and backwashing of rapid anthracite filters. Its characteristic and properties depend on a raw water quality, treatment methods as well as types of chemicals used and their doses. According to the Polish Act of 4 December 2012 (Journal of Laws from 2013, item 21) the water sludge should be treated as hazardous waste. An alternative way to dispose water sludge and reduce its volume may be sludge reuse. The authors suggested a research methodology and analyzed the preliminary results, which showed that co-digestion of sewage and water sludge enhanced biogas production. The authors assume that the results of the study will provide a basis for development of methodology for sludge control and disposal.

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A review on alum sludge reuse with special reference to agricultural applications and future challenges

Cited by 237 publications

References 109 publications

Co-digestion of Poultry Sludge Filter Pressed Cake with Market Waste to Enhance the Compost Quality

Co-digestion of Poultry Sludge Filter Pressed Cake with Market Waste to Enhance the Compost Quality

Effect of ultrasonic and thermal disintegration of water treatment sludge

Possible Co-fermentation of Water and Sewage Sludge

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