Plant availability of nutrients recovered as solids from human urine tested in climate chamber on Triticum aestivum L.

Ganrot, Zsófia; Dave, Göran; Nilsson, Eva; Li, Bo

doi:10.1016/j.biortech.2007.01.003

Cited by 37 publications

(30 citation statements)

References 22 publications

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“…Latifiana et al (2012) assessed the short-term release of N, P and Mg from struvite pellets, and found it to be considerably slower than from commercial mineral fertiliser. Similar results were found by Ganrot et al (2007) in a study where human urine-derived struvite was tested on wheat and found to be effective as a slow release fertiliser, but not providing as high a starting effect (rapid plant P uptake) as mineral fertiliser P. However, Johnston and Richards (2003) found a range of struvites to have a similar effect to mineral fertiliser P on ryegrass. Similarly, wastewater treatment (Ponce and De Sa, 2007) or urine-derived (Antonini et al, 2012) struvite was found to be as effective as a fertiliser P source for ryegrass biomass production; yields were comparable to or exceeding those achieved with commercial P fertilisers on deficient, low-fertility soils.…”

Section: Struvitesupporting

confidence: 62%

Animal Manure Residue Upgrading and Nutrient Recovery in Biofertilisers

Jensen

2013

Animal Manure Recycling

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Section: Struvitesupporting

confidence: 62%

Animal Manure Residue Upgrading and Nutrient Recovery in Biofertilisers

Jensen

2013

Animal Manure Recycling

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“…When the pH increases, the equilibrium shifts towards ammonia. Zeolite on its own is not toxic to Daphnia magna, probably because the zeolite addition decreases urine toxicity by decreasing the pH [20,29].…”

Section: Toxicitymentioning

confidence: 99%

“…Three bakers with 800 mg of commercial fertilizer (NPK, 14-4-21) at the bottom were used as positive controls, and three pots with no fertilizer addition were used as negative controls. The amount of NPK needed for optimal plant growth was calculated according to previous experiments [29].…”

Section: Toxicity Testsmentioning

confidence: 99%

Nutrient Recovery from Human Urine Using Pretreated Zeolite and Struvite Precipitation in Combination with Freezing‐Thawing and Plant Availability Tests on Common Wheat

Ganrot¹,

Slivka

Dave

2008

CLEAN Soil Air Water

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The nutrient rich fractions in wastewater originating from human urine and can be recovered as solids for more efficient recycling, facilitated handling and storage for reuse in agriculture. Freezing and thawing can be used to concentrate the urine nutrients. Phosphorus (P) and nitrogen (N) can be precipitated as struvite [(Mg,Ca)(K,NH 4 )(PO 4 ) N 6H 2 O] by adding MgO and additional nitrogen can be recovered by using zeolites. The zeolite in this study was pretreated in two ways: (i) washed and (ii) washed and thermally treated. The P recovery was high (A 97%) and the N recovery was ca. 50 to 60%. There was no significant difference in the nitrogen recovery among the different pretreated zeolites or between the pretreated and the untreated zeolite. Freezing had a positive effect on the nutrient concentration. The acute toxicity of the supernatants was tested on Daphnia magna to evaluate the possibilities of discharging the remaining supernatants to a recipient. The supernatants from the frozen treatments and from the unfrozen and washed zeolites were much less toxic than those of the original urine. The minerals acted as slow-release fertilizers in climate chamber tests on spring wheat.

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“…5b, it was clear that the addition of struvite significantly increased the average fresh and dry weights of Chinese cabbage than control. It is well documented by previous studies that the vegetables grown in struvite pots have had much higher growth rates than control pots (without addition of external nitrogen and phosphorus) (Li and Zhao, 2003;Diwani et al, 2007; Ganrot et al, 2007;Yetilmezsoy and SapciZengin, 2009). Also, the average fresh and dry weights of Chinese cabbage in struvite pots ranked second in the experimental group.…”

Section: Fertility Evaluation Of Struvite Depositmentioning

confidence: 80%

Recovery of nitrogen by struvite precipitation from swine wastewater for cultivating Chinese cabbage

Ryu¹,

Lee²,

Lee³

2015

Journal of Environmental Science International

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This study assessed the fertilizing value of struvite deposit recovered from swine wastewater in cultivating Chinese cabbage. Struvite deposit was compared with commercial fertilizers: complex, organic and compost to evaluate the fertilizing effect of struvite deposit. Laboratory pot test obviously presented that the struvite deposit more facilitated the growth of Chinese cabbage than organic and compost fertilizers even though complex fertilizer was the most effective in growing Chinese cabbage. It was revealed that the growth rate of Chinese cabbage was simultaneously controlled by phosphorus (P) and potassium (K). Also, the nutrients such as nitrogen (N), P, K, calcium (Ca) and magnesium (Mg) were abundantly observed in the vegetable tissue of struvite pot. Specifically, P was the most abundant component in the vegetable tissue of struvite pot. Meanwhile, the utilization of struvite as a fertilizer led to the lower accumulation of chromium (Cr 6+ ) than other pots, except for compost fertilizer pots, and no detection of cadmium (Cd), arsenic (As) and nickel (Ni) in the Chinese cabbage. The experimental results proved that the optimum struvite dosage for the cultivation of Chinese cabbage was 2.0 g struvite/kg soil. On the basis of these findings, it was concluded that the struvite deposits recovered from swine wastewater were effective as a multi-nutrient fertilizer for Chinese cabbage cultivation.

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Plant availability of nutrients recovered as solids from human urine tested in climate chamber on Triticum aestivum L.

Cited by 37 publications

References 22 publications

Animal Manure Residue Upgrading and Nutrient Recovery in Biofertilisers

Animal Manure Residue Upgrading and Nutrient Recovery in Biofertilisers

Nutrient Recovery from Human Urine Using Pretreated Zeolite and Struvite Precipitation in Combination with Freezing‐Thawing and Plant Availability Tests on Common Wheat

Recovery of nitrogen by struvite precipitation from swine wastewater for cultivating Chinese cabbage

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