Application of biosolids in civil engineering: State of the art

Wanare, Ram; Iyer, Kannan K. R.; Dave, Trudeep N.

doi:10.1016/j.matpr.2022.04.166

Cited by 5 publications

(4 citation statements)

References 38 publications

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“…Forming the dried sludge into another form, such as bricks, may yield better results. Although the production of bricks from sewage sludge has been studied and its use is mostly intended for construction (Ding et al, 2021;Wanare et al, 2022). However, it is recommended that bricks from domestic sewage treatment sludge be further investigated as an adsorbent.…”

Section: Discussionmentioning

confidence: 99%

Wastewater Characterization and pH Neutralizing Effect of Adsorbents: A Case Study of Washed Concrete Wastewater from a Ready-Mix Plant

Adhin Harum Wulaningtyas,

Ni Nyoman Nepi Marleni

2023

jcef

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This study aims to characterize washed concrete wastewater and examine the effectiveness of three different adsorbents in reducing its high alkalinity and metal contents. It is important to note that proper treatment is essential before discharging wastewater into water bodies to prevent any negative impact on the environment. Therefore, in this study, an adsorption scenario was conducted to obtain optimum treatment for washed concrete wastewater. The objectives of this study are as follows (1) to determine the typical characteristics of washed concrete wastewater based on the parameters outlined in the Regulation of the Ministry of Environment of Indonesia No 5 of 2014 and (2) to assess the performance of different adsorbents. Three wastewater samples were obtained from a ready-mix plant and then tested in the laboratory. The initial test was conducted to identify influent characteristics, and from this test, it was found that only the pH level exceeded the specified standard. Following this, the study then assessed the ability of three adsorbents to reduce the pH level in washed concrete wastewater using the batch test in Duplo. The pH level was measured at 0.25, 0.5, 1, 2, 3, 4, 5, 6, 7, 8, and 24 hours. The three adsorbents tested were activated carbon, clay brick, and dried domestic sewage sludge. The result shows that dried domestic sewage sludge was the most effective at reducing alkaline wastewater due to its acidic pH. Therefore, it has the potential to replace other commercial adsorbents and reduce the problem of sludge disposal. Further research on this material is recommended, such as evaluating its performance in a more solid form, such as brick, and assessing its contamination potential.

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Section: Discussionmentioning

confidence: 99%

Wastewater Characterization and pH Neutralizing Effect of Adsorbents: A Case Study of Washed Concrete Wastewater from a Ready-Mix Plant

Adhin Harum Wulaningtyas,

Ni Nyoman Nepi Marleni

2023

jcef

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“…Application of biosolids in the field of construction is one of the sustainable disposal routes of biosolids, which is dependent on the material's geotechnical properties. Modified/stabilized biosolid composites and aggregates applied in construction can be used for embankment filling, land reclamation, brick manufacture, and the development of other construction materials [ 49 ]. Biosolid's use in this way is a major contribution to the circular economy ecosystem.…”

Section: Biosolid Management and Disposal Methodsmentioning

confidence: 99%

“…Biosolid's use in this way is a major contribution to the circular economy ecosystem. The addition of substances like lime, cement, bauxson, glass, and fly ash has been reported to greatly enhance the stability, compaction characteristics, shear, and compressive strengths of biosolids [ 49 ]. Usually, before composites are applied in construction, standard tests such as large-scale direct shear tests, vane shear tests, cone penetration tests, triaxial tests, California bearing ratio, consolidation tests, compaction tests, etc.…”

Section: Biosolid Management and Disposal Methodsmentioning

confidence: 99%