Management of Sewage Sludge for Environmental Sustainability

2022 ◽  
pp. 353-381
Author(s):  
Deeksha Krishna ◽  
Hirdesh Kumar Sachan ◽  
Hanuman Singh Jatav
Keyword(s):  
Sewage Sludge ◽  
Environmental Sustainability

scholarly journals The Influence of Sewage Sludge Content and Sintering Temperature on Selected Properties of Lightweight Expanded Clay Aggregate

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3363
Author(s):  
Jolanta Latosińska ◽  
Maria Żygadło ◽  
Przemysław Czapik
Keyword(s):  
Sewage Sludge ◽  
Water Absorption ◽  
Apparent Density ◽  
Environmental Sustainability ◽  
Sintering Temperature ◽  
Total Porosity ◽  
Raw Material ◽  
Closed Porosity ◽  
Specific Density ◽  
Sustainability Principles

Wastewater treatment processes produce sewage sludge (SS), which, in line with environmental sustainability principles, can be a valuable source of matter in the production of lightweight expanded clay aggregate (LECA). The literature on the influence of SS content and sintering temperature on the properties of LECA is scarce. This paper aims to statistically evaluate the effects of SS content and sintering temperature on LECA physical properties. Total porosity, pore volume, and apparent density were determined with the use of a density analyzer. A helium pycnometer was utilized to determine the specific density. Closed porosity was calculated. The test results demonstrated a statistically significant influence of the SS content on the specific density and water absorption of LECA. The sintering temperature had a significant effect on the specific density, apparent density, total porosity, closed porosity, total volume of pores, and water absorption. It was proved that a broad range of the SS content is admissible in the raw material mass for the production of LECA.

Sewage Sludge Management for Environmental Sustainability: An Introduction

2022 ◽  
pp. 1-28
Author(s):  
Jussara Borges Regitano ◽  
Mayra Maniero Rodrigues ◽  
Guilherme Lucio Martins ◽  
Júlio Flávio Osti ◽  
Douglas Gomes Viana ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Environmental Sustainability ◽  
Sludge Management ◽  
Sewage Sludge Management

scholarly journals Chemical characterization of vermicompost of sewage sludge with different proportions of diatomaceous material

2017 ◽  
Vol 21 (8) ◽  
pp. 519-523
Author(s):  
Fabíola M. Braga ◽  
Paulo H. S. Cardoso ◽  
Mário H. C. Barbosa ◽  
Márcio N. Rodrigues ◽  
Regynaldo A. Sampaio ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Environmental Sustainability ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Chemical Characterization ◽  
Biofuel Production ◽  
Eisenia Foetida ◽  
Organic Compost

ABSTRACT The pursuit for waste recovery has been the best way to contribute to environmental sustainability. The mix of sewage sludge (SS) from Sewage Treatment Plant with diatomaceous material containing oil (DE), used as a filter in biofuel production, can form a substrate rich in minerals and organic matter through vermicomposting. Therefore, this study aimed to produce vermicompost using worms, Eisenia foetida, from a pre-compost (PC) of sewage sludge and garden pruning residues mixed with different proportions of DE in relation to PC: 0; 7.53; 15.06; 22.59; and 30.12% v/v. The design was randomized complete blocks with five treatment replicates. The chemical characteristics of the vermicompost were analyzed after a period of four months. The proportion of up to 30.12% v/v of DE met the criteria established for agriculture uses, registration and marketing of the product as organic compost in accordance with the Normative Instructions SDA 27/2006 and 25/2009 from the Ministry of Agriculture.

scholarly journals Comparative environmental sustainability study of an improved sewage sludge treatment and sludge reuse system based on emergy analysis in China

2021 ◽  
Vol 11 (9) ◽  
Author(s):  
Junxue Zhang ◽  
Lin Ma
Keyword(s):  
Sewage Sludge ◽  
Environmental Sustainability ◽  
Sewage Treatment ◽  
Treatment System ◽  
Sludge Treatment ◽  
Sludge Recycling ◽  
Sewage Sludge Treatment ◽  
Reuse System ◽  
The One ◽  
Emergy Value

AbstractAs the significant residuals in the sewage treatment system, sludge treatment and reuse play a pivotal impact on the environmental sustainability study in China. In this paper, two sewage sludge treatment systems have been investigated, calculated, and analyzed, including the conventional treatment system (Scenario A) and improved reuse system (Scenario B), respectively. The results demonstrate that (1) Compared to Scenario A, Scenario B is a comprehensive system, which integrates a sewage sludge treatment system and a brick production system for sludge recycling. (2) After considering the brick system (scenario B), on the one hand, the sludge treatment capacity has been enhanced and raised sludge utilization; on the other hand, negative influences have also generated due to the non-renewable resources input and several outputs. (3) In Scenario A and Scenario B, the input resources part reflects the main impact (about 59.6% in the entire emergy value). (4) In this new paper, the UEVs are 2.73E + 11sej/kg and 6.29E + 11sej/kg in Scenario A and Scenario B, respectively. (5) The emergy sustainability indexes (ESI) are 0.012292 and 0.00848, which express the weak comprehensive effects in Scenario A and Scenario B. (6) Scenario B has a more extensive range of change than Scenario A because of the more resource input for the sensitivity analysis. Given the all discussions, there are two effective approaches to be used for perfecting environmental sustainability in the Scenario A system and Scenario B system.

scholarly journals Exploiting the Nutrient Potential of Anaerobically Digested Sewage Sludge: A Review

Energies ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 8149
Author(s):  
Nicola Di Costanzo ◽  
Alessandra Cesaro ◽  
Francesco Di Capua ◽  
Giovanni Esposito
Keyword(s):  
Wastewater Treatment ◽  
Sewage Sludge ◽  
Environmental Sustainability ◽  
Wastewater Treatment Plants ◽  
Nutrient Recovery ◽  
Comprehensive Overview ◽  
Novel Technologies ◽  
Current State ◽  
Exchange Membrane ◽  
Digested Sewage Sludge

The world is currently witnessing a rapid increase in sewage sludge (SS) production, due to the increased demand for wastewater treatment. Therefore, SS management is crucial for the economic and environmental sustainability of wastewater treatment plants. The recovery of nutrients from SS has been identified as a fundamental step to enable the transition from a linear to a circular economy, turning SS into an economic and sustainable source of materials. SS is often treated via anaerobic digestion, to pursue energy recovery via biogas generation. Anaerobically digested sewage sludge (ADS) is a valuable source of organic matter and nutrients, and significant advances have been made in recent years in methods and technologies for nutrient recovery from ADS. The purpose of this study is to provide a comprehensive overview, describing the advantages and drawbacks of the available and emerging technologies for recovery of nitrogen (N), phosphorus (P), and potassium (K) from ADS. This work critically reviews the established and novel technologies, which are classified by their ability to recover a specific nutrient (ammonia stripping) or to allow the simultaneous recovery of multiple elements (struvite precipitation, ion exchange, membrane technologies, and thermal treatments). This study compares the described technologies in terms of nutrient recovery efficiency, capital, and operational costs, as well as their feasibility for full-scale application, revealing the current state of the art and future perspectives on this topic.

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