Aerobic in-vessel co-composting of dewatered sewage sludge with mixed municipal wastes under subhumid and semiarid atmospheric conditions

Vasudevan, Mukund; Karthika, K. S.; Gowthaman, S.; Karthick, K.; Balaganesh, Pandiyan; Kumar, Saravana; Natarajan, N.

doi:10.1080/15567036.2019.1624888

Cited by 17 publications

(5 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This result is significant to realize that higher nitrogen species concentrations are actually responsible for low C/N ratios (1.35 ± 0.58) for the compost even though organic carbon levels were quite high, due to the frequent leachate recirculation during co‐composting. [ 30 ] Apart from improving soil fertility, this also facilitates organic carbon fixation in the soil, which is equivalent to the reduction in greenhouse gas emission. [ 40 ] The significance of leachate attribute from the compost‐mixed soils toward salinity was also evaluated in terms of free chloride concentrations.…”

Section: Resultsmentioning

confidence: 99%

“…[ 29 ] The moisture content in the bins was maintained by taking advantage of distorted spray cover from aeration tanks by keeping it open every alternative 6 h and also with sludge‐derived leachate at a predetermined rate (1.0 L per week). [ 30 ] The bins were monitored for a period of 45 days.…”

Section: Methodsmentioning

confidence: 99%

“…During co‐composting, samples were taken regularly for evaluating the stability as well as maturity of SDC in terms of the most referred physicochemical parameters such as temperature, moisture content, pH, electrical conductivity (EC), nitrate nitrogen, chloride, total organic carbon (TOC), and total nitrogen (TN) following the standard procedure as mentioned elsewhere [ 30,18 ] The instrumental methods (TOC Analyzer, Shimadzu, Singapore) for estimating the organic matter in terms of its prevailing nutrients (carbon and nitrogen) were verified with conventional methods (dichromate‐oxidation method) to eliminate the possible systemic errors. The SLIS and field soil samples were also extracted and analyzed periodically.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Improving Soil Fertility and Nutrient Dynamics with Leachate Attributes from Sewage Sludge by Impoundment and Co‐Composting

Balaganesh

Vasudevan

Natarajan³

et al. 2020

CLEAN Soil Air Water

Self Cite

View full text Add to dashboard Cite

Co-composting offers a sustainable solution for community level sewage treatment plants (STP) by producing nutrient-optimized compost. Soils in such treatment vicinity are susceptible for receiving significant quantity of wastewater, capable of causing a radical shift in soil structure and nutrient dynamics. Samples of sludge-leachate impounded soil (SLIS) and low fertile soil are collected to select the proportioning of sludge-derived composts (SDC). A series of batch experiments are conducted by mixing predetermined quantity of SDC with field soils on weight basis to identify the best proportioning combination. Based on the in-vessel aerobic cocomposting experiments with reuse of generated leachate (at a rate of 1.0 per week), SDC exhibits good nutrient stability in terms of carbon-nitrogen ratio (8-11) with effective moisture augmentation from leachate (45%-74%) under non-isothermal conditions (between 46±2°C and 32±4°C) within 45 days of incubation. Significant nitrogen transformation is exhibited in SLIS samples due to the temporal variations in sludge decomposition as verified through leaching column experiments. Approximately 30% of nutrient (carbon and nitrogen) leaching is prevented due to the improved moisture retention capacity in presence of compost. An empirical correlation has been derived between various analytical measures of organic matter depicting enhanced decomposition stages of sludge in soil amendments.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Improving Soil Fertility and Nutrient Dynamics with Leachate Attributes from Sewage Sludge by Impoundment and Co‐Composting

Balaganesh

Vasudevan

Natarajan³

et al. 2020

CLEAN Soil Air Water

Self Cite

View full text Add to dashboard Cite

show abstract

“…The Soil and compost samples were taken periodically to assess physico-chemical parameters. Each 5gram of sample were extracted and measured (as prescribed by Vasudevan et al) [13] for pH, Electrical Conductivity (EC), Nitrate Nitrogen, Chloride, Total Organic Carbon (TOC) and Total Nitrogen (TN).…”

Section: Experimental Setup and Investigationmentioning

confidence: 99%

Co-composting Versus Direct Ponding of Sewage Sludge on Soil Nutrients Redistribution

2019

IJRTE

View full text Add to dashboard Cite

Depriving soil fertility serves as one major cause for reduced crop growth rate and production, which in turn affects the food productivity. Various soil conservation measures to sequester the soil nutrients are adopted in developing countries locally and conventionally. In another scenario, present day sewage treatment plants (STP) across the nation are struggling to treat the receiving water quantity effectively. The fluctuations in receiving quantity of waste water resulted in untreated excess sludge dumping in nearby places. In order to synergize the excess sludge dumping in a feasible way by land management practices, the present study aims to compare two methods of sludge incorporating into soil, namely co-composting and direct ponding. Samples were collected from two different plots receiving sludge for different duration (fresh and old) at different depths (12 cm, 24 cm and 36 cm) and analyzed for various physicochemical parameters. The study also highlights the co-composting of sewage sludge with other community wastes to contribute a better analogy on nutrient redistribution. The obtained results of 17.34 mg/l total organic carbon and 1.392 mg/l total nitrogen at 36cm depth in old sludge ponding sites reveals the improved capability of sludge leachate against the soil nutrient attenuation. It finds application in agricultural practice to promote crop growth under controlled conditions of sewage sludge amendment as ponding and co-composting.

show abstract

“…India, with its growing population and evolving consumption patterns, produces a significant volume of organic wastes from households, agricultural activities, green spaces, local markets, and the food industry. While mismanaged organic wastes can pose severe environmental challenges including greenhouse gas emissions and groundwater contamination, they also offer substantial opportunities for resource recovery and circular economy principles [1][2][3][4][5]. On the other hand, industrial waste management and utilization play a vital role in achieving sustainable development goals, particularly IOP Publishing doi:10.1088/1755-1315/1258/1/012011 2 in rapidly growing economies like India.…”

Section: Introductionmentioning

confidence: 99%

Waste to Wealth: A Futuristic Outlook for Waste Utilization in India

Balaganesh,

Vasudevan,

Natarajan

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

India, having one of the largest agro-basedeconomies in the world, produces a significant amount of wastes, both from farming activities and agro-based industries. These wastestreams pose critical environmental and public health challenges that necessitate efficient management strategies.The present review examines the current status and future perspectives of waste utilization in India. We have attempted to criticallyidentify the most prominent features of effective waste management and the constraints in resource recovery for achieving the sustainable development goals. This review provides an overview of the prevailing practices in waste utilization, highlighting various methods employed and the types of industries that can benefit from this approach. In particular, techniques such as co-processing, recycling, waste-to-energy conversion, and industrial symbiosis to be extensivley made accessible to maximize the value derived from wastes. Some of the major challenges we identified include limited awareness, inadequate infrastructure, and regulatory gaps, which can significantly hinder the optimal utilization plans. To address these challenges, the review proposes potential strategies such as awareness campaigns, infrastructure development, technology transfer, and policy strengthening both at community and organizational levels. The findings of this review canshed light on the current landscape of waste utilization in India and present pathways for a more sustainable and efficient approach in the near future.

show abstract

Aerobic in-vessel co-composting of dewatered sewage sludge with mixed municipal wastes under subhumid and semiarid atmospheric conditions

Cited by 17 publications

References 36 publications

Improving Soil Fertility and Nutrient Dynamics with Leachate Attributes from Sewage Sludge by Impoundment and Co‐Composting

Improving Soil Fertility and Nutrient Dynamics with Leachate Attributes from Sewage Sludge by Impoundment and Co‐Composting

Co-composting Versus Direct Ponding of Sewage Sludge on Soil Nutrients Redistribution

Waste to Wealth: A Futuristic Outlook for Waste Utilization in India

Contact Info

Product

Resources

About