Study of the coagulation process in wastewater treatment of dairy industries

Loloei, Mahshid; Alidadi, Hosein; Nekonam, Gholamabbas; Kor, Yousef

doi:10.4103/2277-9183.132684

Cited by 42 publications

(26 citation statements)

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“…In many countries, the wastewater of dairy and dairy products is among the sources that cause significant pollution of natural aquatic environments. Numerous studies have been conducted to date to considerably reduce the adverse effects of these wastewaters [24].…”

Section: Assessment Of Physicochemical Treatment Processes On Dairy Wmentioning

confidence: 99%

Physico-Chemical Treatment of Dairy Industry Wastewaters: A Review

Yonar¹,

Sivrioğlu²,

Özengi̇n³

2018

Technological Approaches for Novel Applications in Dairy Processing

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Dairy industries have grown in most countries because of the demand in milk and milk products. This rise has led to the growth of dairy industries. The wastewaters discharged from this industry contain high concentrations of nutrients, chemical oxygen demand (COD), biological oxygen demand (BOD), total suspended solids (TSS) and organic and inorganic contents, which can cause serious environmental problems if not properly treated. The conventional biological treatment methods are suitable for dairy wastewaters due to its high biodegradability. However, long chain fatty acids formed during the hydrolysis of lipids show the inhibitory action during anaerobic treatment. Sequencing batch reactor (SBR) and up flow anaerobic sludge blanket (UASB) systems seem to be the most promising technology for the biological treatment of dairy wastewaters. Several research papers have been published on the application of aerobic and anaerobic treatment technologies for dairy industry wastewater, but both treatment methods still have some disadvantages. The most important challenge is to find costefficient and environmentally sustainable approaches to enable water reuse and waste management. Therefore, alternative treatment technologies against biological treatment methods such as coagulation, adsorption, membrane and electrolysis processes are under investigation. This chapter provides a critical review focusing on physicochemical treatment technologies of dairy wastewater.

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Section: Assessment Of Physicochemical Treatment Processes On Dairy Wmentioning

confidence: 99%

Physico-Chemical Treatment of Dairy Industry Wastewaters: A Review

Yonar¹,

Sivrioğlu²,

Özengi̇n³

2018

Technological Approaches for Novel Applications in Dairy Processing

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“…The OM present in nejayote can contribute in a mineralised form to agricultural crops, by releasing nutrients of its chemical and moistened composition, thus improving the soil indicates an increase in the content of salts or ions, as observed when comparing the data reported in Table 2 and Table 3. In the case of BNCQ, the electric conductivity has an additional ion contribution due to the bentonite used in the chemical coagulation treatment [23]. The total nitrogen and phosphorus content in bio-fertilisers is practically constant and in the same order of magnitude as the content from raw …”

Section: Characterization Of Raw and Treated Nejayotementioning

confidence: 74%

Application of Nejayote as a Foliar and Edaphic Fertiliser to Native Blue Maize (<i>Zea mays</i> L.) Crops

Téllez¹,

López²,

Aragón‐García³

et al. 2016

AJPS

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Raw and treated "nejayote" were assessed as foliar and edaphic fertilisers for native blue maize (Zea mays L.) crops in the municipality of Amozoc de Mota, Puebla, Mexico, during the 2015 agricultural cycle. Treated nejayote refers to raw nejayote subjected to a coagulation-flocculation process. Two states of nejayote were established (raw and treated nejayote) with different physicochemical properties. Foliar bio-fertilisers were prepared from raw and treated nejayote and mixed with organic matter (OM) to promote a fermentation process. The foliar treatments used were: BNC5, BNC15, BNC30 (raw nejayote-based bio-fertiliser at 5%, 15%, and 30%), BNCQ5, and NCQ30 (nejayote treated by chemical coagulation at 5% and 30%), with BT as a control (traditional bio-fertiliser). The edaphic treatments used were: NC50, NC75, and NC100 (raw nejayote at 50%, 75%, 100%), with AP as a control (drinking water), thus giving rise to 10 treatments in terms of content of raw or treated nejayote. Foliar and edaphic field treatments applied to native blue maize crops were statistically assessed using the following response variables: plant height, stem diameter, number of leaves, and grain yield. The experiment was laid out in a randomised complete block design (RCBD) with five replications of each treatment. The results obtained showed, that foliar or edaphic application at the different stages of development did not produce statistically significant differences, at P ≤ 0.05, in terms of response variables. The most significant effects occurred at the early stage of plant development and were mainly reflected in the stem diameter with foliar treatment NCQ30 and in the number of leaves with foliar treatment BNC5. At the final stage of crop development, the highest yield (0.639 ± 0.121 t•ha −1 ) was obtained with treatment BNC5, which produced a statistically significant difference (b) in relation to the rest of the foliar and edaphic treatments (Tukey P ≤ 0.05).

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“…• Não é suficiente para utilização isolada no tratamento das águas residuais. ASSELIN et al, 2008;GUGLIELMOTTI et al, 2011;LOLOEI et al, 2014;RIVAS et al, 2011. • Eficiente para a redução da DBO;…”

Section: Físicoquímicosunclassified

O Soro Do Leite, Seus Principais Tratamentos E Meios De Valorização

et al. 2018

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Questões ambientais, associadas à produção de soro do leite pelas agroindústrias de laticínios, impulsionam buscas por alternativas que visem tanto a preservação do meio ambiente, quanto a agregação de valor a esse coproduto. Este artigo tem como objetivo discutir as vantagens, desvantagens, oportunidades e ameaças dos principais tratamentos e meios de valorização do soro do leite. Desta forma, a revisão de literatura apresenta como resultado uma discussão crítica sobre o contexto geral da empregabilidade atual do soro do leite e as implicações ambientais envolvidas.

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Study of the coagulation process in wastewater treatment of dairy industries

Cited by 42 publications

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Physico-Chemical Treatment of Dairy Industry Wastewaters: A Review

Physico-Chemical Treatment of Dairy Industry Wastewaters: A Review

Application of Nejayote as a Foliar and Edaphic Fertiliser to Native Blue Maize (<i>Zea mays</i> L.) Crops

O Soro Do Leite, Seus Principais Tratamentos E Meios De Valorização

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Study of the coagulation process in wastewater treatment of dairy industries

Cited by 42 publications

References 0 publications

Physico-Chemical Treatment of Dairy Industry Wastewaters: A Review

Physico-Chemical Treatment of Dairy Industry Wastewaters: A Review

Application of Nejayote as a Foliar and Edaphic Fertiliser to Native Blue Maize (&lt;i&gt;Zea mays&lt;/i&gt; L.) Crops

O Soro Do Leite, Seus Principais Tratamentos E Meios De Valorização

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Application of Nejayote as a Foliar and Edaphic Fertiliser to Native Blue Maize (<i>Zea mays</i> L.) Crops