Start-up of an UASB reactor treating potato-starch wastewater using an alkalimetric follow-up procedure

Balaguer, M. Dolors; Cassú, C.; Vicent, Teresa; Paris, J. M.

doi:10.1016/0961-9534(92)90034-n

Cited by 9 publications

(3 citation statements)

References 2 publications

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“…Given that the working volume was 400 mL, a retention time (hydraulic and cellular) of 5 days during the acclimatisation phase may not have permitted full development of the slow‐growing methanogen community within the completely mixed reactor. The conditions created probably resulted in the biochemical thermodynamics within the microbial populations favouring the fermentative acidogenic phase of AD 2. The expected increase in TS and VS was a result of the simple physical mixing process given the TS and VS loading in the test wastes during the equilibration phase.…”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, potentially toxic substances have been detected in the potato processing wastewater. The wastewater may contain proteins which are anaerobically difficult to degrade and phenols such as L‐dopa which cause toxicity problems if anaerobic sludge is exposed to L‐dopa in the presence of volatile fatty acids (VFAs) 2. Potato and its industrial by‐products typically contain high quantities of soluble organics that would rapidly be converted into VFAs.…”

Section: Introductionmentioning

confidence: 99%

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Anaerobic co‐digestion of potato processing wastewater with pig slurry and abattoir wastewater

Monou

Pafitis

Kythreotou

et al. 2008

J of Chemical Tech & Biotech

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Anaerobic co‐digestion of potato processing wastewater with pig slurry and abattoir wastewater

Monou

Pafitis

Kythreotou

et al. 2008

J of Chemical Tech & Biotech

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“…However, traditional flocculants such as polyaluminum chloride or polyacrylamide that are commonly used will cause secondary pollution, and the recycled materials cannot be reused [11]. At this time, chitosan film is a natural cationic polymer with biocompatibility, non-toxicity, flocculation, film formation, and other characteristics, which was extensively examined by scientists and is an excellent natural flocculant [12,13]. Studies reported that the chitosan film is poor in water solubility and has limited usage in many fields.…”

Section: Introductionmentioning

confidence: 99%

Study on Flocculation Characteristics of Potato Starch Wastewater

Liu,

Wang,

et al. 2023

Coatings

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Herein, a chitosan film (CS) was modified using 2,3-epoxy-propyl trimethyl ammonium chloride (GTA) to flocculate granular pollutants in potato starch wastewater, aiming at the deficiencies of poor water solubility and weak electropositivity of the chitosan film. By examining the degree of substitution of chitosan film amino under different factors and different levels and response surface optimization tests, the optimum preparation conditions of chitosan film quaternary ammonium salt (HTCC) were obtained. Using scanning electron microscopy (SEM), Fourier infrared (FTIR) spectroscopy, X-ray diffraction (XRD), and 1H-nuclear magnetic spectroscopy, the nucleophilic substitution reaction of the GTA molecule with the hydrogen atoms in the chitosan film amino group successfully improved the water solubility and electropositivity of the chitosan film. HTCC was used to treat potato starch wastewater, and the optimal flocculation conditions were obtained. The flocculation product was recovered, and the composition analysis of the flocculation product demonstrated that HTCC-potato protein flocculation precipitate was rich in high protein, which is a good choice of feed and can realize sustainable utilization of resources.

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Occurrence and transformations of carbon, nitrogen, and phosphorus related to particle size fraction of sweet potato starch wastewater during hydrolytic acidification processes

Zhu

Qin

et al. 2017

Environ Sci Pollut Res

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Sweet potato starch wastewater (SPSW) is an industrial food-processing waste product, which is a significant pollution source due to its high chemical oxygen demand (COD), nitrogen, and phosphorus loads. The influence of hydrolytic acidification (HA) process on C, N, and P as well as other main parameters were evaluated. It is essential to treat these wastewaters with effective methods such as HA, a general pretreatment application. In this study, we investigate the scientific link between the changes of different fractions of C, N, and P with particle size distribution in response to the newly introduced HA process. Results showed that the levels of COD, TN, and TP remained ultimately stable; pH and suspended solids (SSs) decreased obviously. HA process exhibits excellent capability of reducing the larger particulars (with diameter of >5 μm) into smaller ones (with diameter of <0.1 μm). The most significant initial concentration contribution to COD, TN, and TP pollution came from particles and matter with a diameter of >5 μm, at 41.8, 57.3, and 43.5%, respectively. While the most significant contribution to COD, TN, and TP was resulting from micro-molecular size particles (<0.1 μm) after 48 h. The smallest particles (<0.1 μm) were the most dominant contribution to all pollutants measured, with COD, TN, and TP contributions of 63.2, 50.4, and 59.3%, respectively. While the contribution of larger particles (particle size >5 μm) reduced to 10.2, 15.3, and 7.1%, respectively.

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Start-up of an UASB reactor treating potato-starch wastewater using an alkalimetric follow-up procedure

Cited by 9 publications

References 2 publications

Anaerobic co‐digestion of potato processing wastewater with pig slurry and abattoir wastewater

Anaerobic co‐digestion of potato processing wastewater with pig slurry and abattoir wastewater

Study on Flocculation Characteristics of Potato Starch Wastewater

Occurrence and transformations of carbon, nitrogen, and phosphorus related to particle size fraction of sweet potato starch wastewater during hydrolytic acidification processes

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