Pig manure treatment and purification by filtration

Makara, Agnieszka; Kowalski, Zygmunt

doi:10.1016/j.jenvman.2015.07.022

Cited by 34 publications

(21 citation statements)

References 24 publications

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“…The intensive industrial livestock production has resulted in a high density of animals in relatively small areas, with large quantities of manure produced in recent years (Ko et al, 2008). As a result, the nitrogen-and phosphorus-containing manure constituents contaminate soil and water bodies, also resulting in odor pollution, particularly in and around production buildings, storage areas, and during pig manure spreading (Makara and Kowalski, 2015). Therefore, the need for more environmentally friendly methods for the treatment and utilization of pig manure has become imperative, making the significance of establishing an integrated crop-livestock system hard to overstate.…”

Section: Introductionmentioning

confidence: 99%

Bio- and hydrochars from rice straw and pig manure: Inter-comparison

Liu

Shuai

Wang

et al. 2017

Bioresource Technology

140

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Conversion of rice straw (RS) and pig manure (PM) into chars is a promising disposal/recycling option. Herein, pyrolysis and hydrothermal carbonization were used to produce bio- and hydrochars from RS and PM, affording lower biochar (300-700°C) and hydrochar (180-300°C) yields at higher temperatures within the specified range. The C contents and C/N ratios of RS chars were higher than those of PM ones, with the opposite trend observed for yield and ash content. C and ash contents increased with increasing temperature, whereas H/C, O/C, and (O+N)/C ratios decreased. The lower H/C ratio of biochars compared to that of hydrochars indicated greater stability of the former. KCl was the main inorganic fraction in RS biochars, whereas quartz was dominant in PM biochars, and albite in PM hydrochars. Thus, RS is more suitable for carbon sequestration, while PM is more suitable for use as a soil amendment substrate.

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Section: Introductionmentioning

confidence: 99%

Bio- and hydrochars from rice straw and pig manure: Inter-comparison

Liu

Shuai

Wang

et al. 2017

Bioresource Technology

140

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“…The phosphates are largely associated with precipitates of calcium as dicalcium phosphate, or with ammonium and magnesium as struvite (Bril and Salomons 1990). Therefore, a large part of the available phosphate minerals in manure or manure fractions can be released by lowering the pH (Forbes et al 2008;Masse et al 2008;Makara and Z. 2015;Schoumans et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Chemical phosphorus recovery from animal manure and digestate : Laboratory and pilot experiments

Schoumans

Ehlert

Regelink

et al. 2017

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Chemical phosphorus recovery from animal manure and digestate; Laboratory and pilot experiments.Wageningen, Wageningen Environmental Research, Report 2849. 114 pp.; 43 fig.; 37 tab.; 41 ref.Since a number of decades the Netherlands faces manure surpluses, because the amount of phosphate produced in animal manure is larger than the amount that can be applied on agricultural land according to the application limits. This surplus needs to be exported from the Dutch agricultural sector. The costs of manure export are however high, and therefore new, simple and cheap innovative techniques are needed to recover phosphate from fresh or digested manure (digestate). The relative small amount of concentrated recovered P can be transported more economically for use outside the Netherlands or can be utilized as secondary P resource for industries, e.g. for the production of fertiliser. We report laboratory and pilot experiments that were carried out in search for cheap and innovative techniques of phosphorus recovery. The main goal of the experiments was to reduce the P-content in pig slurry or digested pig slurry by 25% to 75%. If this goal can be reached with -recovery, in principle all manure including its valuable components (organic matter and other nutrients) can be applied sustainably on agricultural land in The Netherlands. The results show that both on laboratory scale and pilot scale 25-75% of P can be technically recovered with the so called 'acid-base approach'. From a sustainability point of view the impact is positives in terms of energy savings, CO 2 -savings, phosphorus savings and also nitrogen savings. The economical perspective is also positive but will strongly depend on the disposal prices of treated pig slurry with a reduced P content and its value as substitute for mineral N fertiliser and value in terms of organic soil improver on the manure market.Keywords: phosphate, manure, digestate, intensive livestock production, phosphate recovery, pig slurry, manure treatment, manure separation. • Acquisition, duplication and transmission of this publication is permitted with clear acknowledgement of the source.• Acquisition, duplication and transmission is not permitted for commercial purposes and/or monetary gain.• Acquisition, duplication and transmission is not permitted of any parts of this publication for which the copyrights clearly rest with other parties and/or are reserved. New innovative approaches are needed to close the phosphorus (P) cycle in The Netherlands because the agricultural sector currently produces about 25% more P, in the form of manure, than can be applied on land. One promising solution to deal with the surplus amount of P in manure is to recover the surplus of P in the form of a mineral P product for use as a P fertiliser (for export) or as a raw P feedstock for the P fertiliser industries. This idea for 'closing the manure P cycle in The Netherlands' has been circulating for a while, but was never thought well over until in 2013 a Public Private Partnership (PPP) was set up with t...

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“…As it was mentioned before, water is a carrier of biogenic raw materials [53]. Therefore, there is high potential for recovery of nitrogen [54,55] and phosphorus [56][57][58] from wastewater and produce the fertilizers [59,60]. The White Paper also underlines the importance of water in the economic systems, including enterprises, created value and its impact.…”

Section: Circular Economy Approach In the Water And Wastewater Sectormentioning

confidence: 98%

Circular economy model framework in the European water and wastewater sector

Smol

Adam

Preisner

2020

J Mater Cycles Waste Manag

175

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One of the key elements in the transformation towards a circular economy (CE) is providing more sustainable practices for resources and waste management. Improvement actions focused on transformation towards a CE should be targeted at all groups of materials and waste. As water is essential for human survival and well-being and plays a significant role in sustainable development (SD), the actions related to the reuse of water and the recovery of raw materials from wastewater and other water-based waste should be taken. The paper presents a proposition for a new CE model framework in the water and wastewater sector, which includes the six following actions: reduction-prevent wastewater generation in the first place by the reduction of water usage and pollution reduction at source; reclamation (removal)-an application of effective technologies for the removal of pollutants from water and wastewater; reuse-reuse of wastewater as an alternative source of water supply (non-potable usage), recycling-recovery of water from wastewater for potable usage; recovery-recovery of resources such as nutrients and energy from water-based waste, and rethink-rethinking how to use resources to create a sustainable economy, which is `free` of waste and emissions. The novelty of the proposed CE model framework is that it presents possible ways of implementing CE principles in the water and wastewater sector, with a strong emphasis not only technological but also organisational and societal changes. Application of the proposed model may help to further transform the European economy to the CE model. Moreover, the indicated model can be significant tool supporting an assessment of local or regional progress towards CE in the water and wastewater sector and further environmental management and planning.

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Pig manure treatment and purification by filtration

Cited by 34 publications

References 24 publications

Bio- and hydrochars from rice straw and pig manure: Inter-comparison

Bio- and hydrochars from rice straw and pig manure: Inter-comparison

Chemical phosphorus recovery from animal manure and digestate : Laboratory and pilot experiments

Circular economy model framework in the European water and wastewater sector

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