Integral approaches to wastewater treatment plant upgrading for odor prevention: Activated Sludge and Oxidized Ammonium Recycling

Estrada, José Daniel Rueda; Kraakman, N.J.R.; Lebrero, Raquel; Muñoz, Raúl

doi:10.1016/j.biortech.2015.08.044

Cited by 28 publications

(13 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is important to stress that, when implemented in a wastewater treatment plant, more suitable side streams are available for nutrients supplementation to the anoxic biotrickling filter. In this sense, nitrified centrates can contain from 300 up to 1000 mg NO 3 − L −1 , a sufficiently high concentration for complete H 2 S oxidation . Besides, the low COD present in this waste stream along with the low biodegradability of this COD after digestion and aeration for nitrification (as opposed to that found in our digestate) will rule out the competition for nitrate of heterotrophic denitrifying bacteria with the autotrophic sulfide oxidizing bacteria.…”

Section: Resultsmentioning

confidence: 78%

Biogas upgrading from vinasse digesters: a comparison between an anoxic biotrickling filter and an algal‐bacterial photobioreactor

Lebrero

Toledo-Cervantes

Muñoz

et al. 2015

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BACKGROUND Biological technologies for biogas upgrading such as anoxic biotrickling filters (BTF) and algal–bacterial photobioreactors (PBR) constitute a cost‐effective, environmentally friendly alternative to conventional physical–chemical methods. Nonetheless, there is a lack of studies comparing their performance when treating real biogas. RESULTS A H2S removal efficiency >98% was consistently recorded in both systems, with elimination capacities up to 26 and 12.4 g S‐H2S m−3 h−1 in the BTF and PBR, respectively, at empty bed residence times (EBRTs) of ∼ 30 min. Both bioreactors demonstrated a high robustness towards fluctuations in biogas composition and flowrate, maintaining nearly complete desulfurization despite the variations in sulfur load and EBRT. The BTF also showed an immediate recovery from a 15 days operational shut‐down, and the ability to utilize the nutrients from nitrate‐supplemented digestate during biogas desulfurization. In addition, the PBR supported an average CO2 removal of 23.0 ± 11.8%, increasing to 62% at higher pH of 8.1, with a carbon fixation rate of 285 mg CO2 L−1 d−1. CONCLUSIONS The BTF was confirmed as a robust technology for the desulfurization of real biogas, even when supplemented with effluent from the digester. High H2S removal was also achieved in the PBR, the CO2 fixation capacity of microalgae enhancing biogas purification. © 2015 Society of Chemical Industry

show abstract

Section: Resultsmentioning

confidence: 78%

Biogas upgrading from vinasse digesters: a comparison between an anoxic biotrickling filter and an algal‐bacterial photobioreactor

Lebrero

Toledo-Cervantes

Muñoz

et al. 2015

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…Large-scale conversion from chemical to biological treatment of H2S laden air streams at the Hyperion Treatment Plant was presented by Ohanian et al (2015) including discussions on the engineering study, space and constructability considerations. Estrada et al (2015) presented two widely applicable alternatives for odor control, Activated Sludge Recycling (ASR) and Oxidized Ammonium Recycling (OAR) including their key operating parameters and experience from available pilot studies.…”

Section: Biological Odor/ Emissions Control Methodsmentioning

confidence: 99%

Gaseous Emissions from Wastewater Facilities

Koh¹,

Shaw²

2016

Water Environment Research

View full text Add to dashboard Cite

A review of the literature published in 2015 on topics relating to gaseous emissions from wastewater facilities is presented. This review is divided into the following sections: odorant emissions from wastewater treatment plants (WWTPs); greenhouse gas (GHG) emissions from WWTPs; gaseous emissions from wastewater collection systems; physiochemical odor/emissions control methods; biological odor/emissions control methods; odor characterization/monitoring; and odor impacts/ risk assessments.

show abstract

“…Only few studies have implemented their proposed innovations and new technologies in the industry. Some of these implementations include a brand-new range of products from a steel company [34], performance improvement of activated sludge reactors [35], and the use of special equipment to control odors in a wastewater treatment plant [36]. In addition to reporting results from both a pilot plant and a full-scale industrial plant, these studies have highlighted the problems that arise from implementing the technologies at the large scale.…”

Section: Industrial Scale-upmentioning

confidence: 99%

Assessing the Impact of a Vinasse Pilot Plant Scale-Up on the Key Processes of the Ethanol Supply Chain

Ramos-Hernández

Mota-López

Sánchez-Ramírez

et al. 2016

Mathematical Problems in Engineering

View full text Add to dashboard Cite

One of the byproducts generated in the cane sugar production is molasses, which is used for ethanol distillation. However, one of the problems of distilleries is vinasse. Vinasse is highly water pollutant and is dumped untreated in lakes or rivers and damages the environment. The company FALA developed a pilot plant that uses vinasse to produce a type of livestock feed called MD60. In this paper, the impact of the pilot plant’s scale-up in the key processes of the company’s supply chain is analyzed. With the help of a sensitivity analysis, this study finds the values that would allow the company to improve its order fulfillment indicator and to increase profits, assuming an expected demand by the introduction of this new product into the market. The results show that (1) the pilot plant fulfills 32% of the orders, (2) according to the current vinasse storage capacity, it is possible to fulfill up to 77% of the orders by scaling up the pilot plant, (3) to satisfy 100% of the orders, it is necessary to use all the vinasse generated, and (4) the highest profit is reached by processing all the vinasse and by considering the upper sale price.

show abstract

Integral approaches to wastewater treatment plant upgrading for odor prevention: Activated Sludge and Oxidized Ammonium Recycling

Cited by 28 publications

References 40 publications

Biogas upgrading from vinasse digesters: a comparison between an anoxic biotrickling filter and an algal‐bacterial photobioreactor

Biogas upgrading from vinasse digesters: a comparison between an anoxic biotrickling filter and an algal‐bacterial photobioreactor

Gaseous Emissions from Wastewater Facilities

Assessing the Impact of a Vinasse Pilot Plant Scale-Up on the Key Processes of the Ethanol Supply Chain

Contact Info

Product

Resources

About