Effect of vermiculite addition on compost produced from Korean food wastes

Seo, Jeoung-Yoon; Heo, Jong-Soo; Kim, T.H.; Joo, Woo Hong; Crohn, David M.

doi:10.1016/j.wasman.2004.08.002

Cited by 34 publications

(13 citation statements)

References 4 publications

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“…After this period, the pH tends to move towards neutral again when these acids have been converted to carbon dioxide by the microbial action. This drop in pH values was observed for the days of loading due to daily addition of biodegradable organic matter, which is in agreement with the observations made by Seo et al (2004); then during the maturation phase, the pH subsequently rose (Fig. 4).…”

Section: Comparisons and Discussionsupporting

confidence: 91%

In-vessel composting of household wastes

Iyengar¹,

Bhave²

2006

Waste Management

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Section: Comparisons and Discussionsupporting

confidence: 91%

In-vessel composting of household wastes

Iyengar¹,

Bhave²

2006

Waste Management

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“…A minimum alkalinity concentration of 5000 mg/L at pH of 7.4 was found to produce adequate buffering effect during the digestion of a Korean FW (Lee et al 2009). The high MC and very low pH characteristics of FW referred to by Seo et al (2004) as a typical Korean FW is similar to that of the FW digested in this study. Most of the alkalinity values recorded during this study (Table 3) were not less than this, except at OL of 7.5 g VS/L during the digestion of F1 where lower alkalinity of 3000 mg/L was recorded.…”

Section: Effects Of Intermediate Vfa During Digestionsupporting

confidence: 77%

Effects of feedstock carbon to nitrogen ratio and organic loading on foaming potential in mesophilic food waste anaerobic digestion

Tanimu

Ghazi

Harun

et al. 2015

Appl Microbiol Biotechnol

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Foaming problem which occurred occasionally during food waste (FW) anaerobic digestion (AD) was investigated with the Malaysian FW by stepwise increase in organic loading (OL) from 0.5 to 7.5 g VS/L. The FW feedstock with carbon to nitrogen (C/N) ratio of 17 was upgraded to C/N ratio of 26 and 30 by mixing with other wastes. The digestion which was carried out at 37 °C in 1-L batch reactors showed that foam formation initiated at OL of 1.5 g VS/L and was further enhanced as OL of feedstock was increased. The digestion foaming reached its maximum at OL of 5.5 g VS/L and did not increase further even when OL was increased to 7.5 g VS/Ld. Increase in the C/N ratio of feedstock significantly enhanced the microbial degradation activity, leading to better removal of foam causing intermediates and reduced foaming in the reactor by up to 60%.

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“…Korean food wastes, in particular, have a high moisture content, high salinity and very low pH (Seo et al, 2004). Because of its high moisture content, the food waste putrefies very easily and the treatment in improperly designed and operated landfills causes a serious threat to groundwater and soil contamination.…”

Section: Introductionmentioning

confidence: 99%