Co-digestion of leachate with septage using a UASB reactor

Lin, Chiu‐Yue; Chang, Feng-Yuan; Chang, Chunhao

doi:10.1016/s0960-8524(99)00166-2

Cited by 66 publications

(26 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The UASB reactor normally operates at temperatures between 20 • C and 35 • C, reaching around 70% removal of COD, and reaching 80% at temperatures around 35 • C. For instance, landfill leachate inflow to UASBs with a HRT of 1.5 days, an organic loading rate of 6.73 kg COD/m 3 -day and with an operation temperature of 35 • C can be treated and achieve removal efficiencies of total COD, soluble COD, total solids, volatile solids, total phosphorus, ammonia nitrogen of 42.2%, 58.1%, 45.3%, 68.2%, 44.3%, 47.8%, respectively [32]. At lower temperatures, such as 13-14 • C, 50%-55% COD and 72% BOD 7 removals were obtained with organic load rates of 1.4-2 kg COD/m 3 -day, while up to 75% COD and up to 95% BOD 7 removals were achievable at temperatures of 20 • C with 4 kg COD/m 3 -day organic loads rate [33].…”

Section: Anaerobic and Anoxic Treatmentmentioning

confidence: 99%

Novel and Conventional Technologies for Landfill Leachates Treatment: A Review

et al. 2016

View full text Add to dashboard Cite

Abstract:Municipal solid waste final disposal represents an environmental burden worldwide since landfilling, or open dumping, is still the preferred solution for the end of life of solid discarded materials. This study aims to review the technological innovations applied for landfill leachate treatment, taking into consideration the experiences obtained during the past years and the solutions which have been implemented. The review showed that both biological and physiochemical treatments are not able to achieve the requested water quality level, according to the limits established by regulations, whether applied in a single treatment or multiple treatments. In order to respect sustainable release limits to guarantee environmental protection, the construction of depuration systems and combining biological and physiochemical treatment methods is considered of the utmost importance. The review looks at possible joint applications of different treatment techniques reviewed by other studies and considers the state of the art of current research. Combined technical solutions suggested within the 2016 peer-reviewed papers are presented and discussed as a sustainable way to effectively treat landfill leachate, giving particular attention to feasible solutions for developing countries.

show abstract

Section: Anaerobic and Anoxic Treatmentmentioning

confidence: 99%

Novel and Conventional Technologies for Landfill Leachates Treatment: A Review

et al. 2016

View full text Add to dashboard Cite

show abstract

“…However, this method has been shown in the more recent decades to be inadequate for handling landfill leachate treatment [40] . Even if processes were proved to be effective for the removal of organic carbon, nutrients and ammonia content, too much disadvantages tend to focus on others technologies:…”

Section: Landfill Leachate Treatmentsmentioning

confidence: 99%

“…In last decades, the performance improvement of the existing anaerobic process was believed to be a promising option and so, high rate reactors have been designed in order to reduce long digestion time [40] . Up-flow Anaerobic Sludge Blanket (UASB) process is a modern anaerobic treatment that can have high treatment efficiency and a short hydraulic retention time [40] .…”

Section: Landfill Leachate Treatmentsmentioning

confidence: 99%

“…Up-flow Anaerobic Sludge Blanket (UASB) process is a modern anaerobic treatment that can have high treatment efficiency and a short hydraulic retention time [40] . UASB reactors, when they are submitted to high volumetric organic loading rate values [16] , have exhibited higher performances compared to other kinds of anaerobic reactors.…”

Section: Landfill Leachate Treatmentsmentioning

confidence: 99%

See 1 more Smart Citation

Review on Landﬁll Leachate Treatments

Аббас¹

2009

American Journal of Applied Sciences

152

View full text Add to dashboard Cite

Problem Statement: Sanitary landfilling is the most common way to eliminate solid urban wastes. An important problem associated to landfills is the production of leachates. This study is a review of landfill leachate treatments. Approach: The advantages and disadvantages of the various existing leachate treatments discussed under the items: (i) Leachate channeling (combined treatment with domestic sewage, recycling) (ii) Biological processing (aerobic and anaerobic) (iii) Chemical/physical treatment (flotation, coagulation/flocculation, chemical precipitation, adsorption, ammonium stripping, chemical oxidation, ion exchange and electrochemical treatment) (iv) Membrane filtration (microfiltration, ultrafiltration, nanofiltration and reverse osmosis). Conclusion: The major fraction of old or biologically treated leachate was large recalcitrant organic molecules that are not easy removed during biological treatment. So that, in order to meet strict quality standards for direct discharge of leachate into the surface water, a development of integrated methods of treatment, a combination of biological, chemical, physical and membrane process steps, were required. Today, the use of membrane technologies, more especially Reverse Osmosis (RO), either as a main step in a landfill leachate treatment chain or as single post-treatment step had shown to be an indispensable means of achieving purification.

show abstract

“…Commercial and industrial development in many countries around the world during past decades have increased generations of urban and industrial solid waste rapidly (Lin et al 2000). Most of the soild waste from communities is disposed in sanitary landfills, where it receives (undergoes) physical, chemical and biological alterations.…”

Section: Introductionmentioning

confidence: 99%

Treatability of landfill leachate by combined upflow anaerobic sludge blanket reactor and aerated lagoon

Govahi

Karimi-Jashni

Derakhshan

2011

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Continuous upflow anaerobic sludge blanket reactor performs more favorably at the higher organic loading rate than other anaerobic treatment. The treatment of municipal landfill leachate of Shiraz's city investigated using continuous flow anaerobic reactor and subsequently aerated lagoon. Landfill leachate has chemical oxygen demand of 45,000-90,000 mg/L and ammonia nitrogen at 1,000-2,500 and heavy metals that can impact biological treatments. Capacity of anaerobic and aerobic reactors is 10 and 20 L that operated at detention time of 2 and 4 days, respectively. Organic loading rate of upflow anaerobic sludge blanket is between 0.5-20 g chemical oxygen demand/L/day. Chemical oxygen demand removal efficiencies are between 57-87, 35-70 and 66-94% in the anaerobic, aerobic and whole system, respectively. As the entry, leachate organic loading rate increased from 1 to 20 g/L/day, the chemical oxygen demand removal efficiency reached a maximum of 71% and 84% in the anaerobic reactor and whole system, respectively, at high organic loading rate. Ammonium removal efficiency was about 54% after the aerobic stage.

show abstract

Co-digestion of leachate with septage using a UASB reactor

Cited by 66 publications

References 4 publications

Novel and Conventional Technologies for Landfill Leachates Treatment: A Review

Novel and Conventional Technologies for Landfill Leachates Treatment: A Review

Review on Landﬁll Leachate Treatments

Treatability of landfill leachate by combined upflow anaerobic sludge blanket reactor and aerated lagoon

Contact Info

Product

Resources

About