Advantages of the integrated pig-biogas-vegetable greenhouse system in North China

Qi, Xinshan; Zhang, Shuping; Wang, Yuzhi; Wang, Renqing

doi:10.1016/j.ecoleng.2004.11.001

Cited by 49 publications

(19 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This has moved further forward with the purpose to develop sustainable and integrated material for energy-based agriculture and the rural economy. Hence, after a 40-year history of biogas for smallholders in rural China, the objective of developing biogas is not only to provide energy, but also to apply improved biogas technology to sustainable agricultural systems for recycling biomass [11] based on a large-scale application, such as the integrated pig-biogas-vegetable systems in northern China [29] and livestock-biogas-fruit systems in southern China [30]. For this reason, modern biogas utilization has been popularized in combination with ecological agriculture for a better performance of harmonizing economic profits, environmentally friendly development, and resource consumption optimization.…”

Section: Introductionmentioning

confidence: 99%

Sustainability-based economic and ecological evaluation of a rural biogas-linked agro-ecosystem

Dai

Chen

Hayat

et al. 2015

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Sustainability-based economic and ecological evaluation of a rural biogas-linked agro-ecosystem

Dai

Chen

Hayat

et al. 2015

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

“…In a review of the literature, a few studies have investigated the use of digestate as a fertilizer for tomato in greenhouse (Qi et al, 2005;Vaughn et al, 2015;Stoknes et al, 2016) and field (Yu et al, 2010) experiments. The results of Yu et al (2010) showed that digestate application increased the organic matter, available nutrients, and culturable microbes in the soil as well as contents of protein, soluble sugar, Vitamin C, and β-carotene in the tomato fruits.…”

Section: Introductionmentioning

confidence: 99%

Digestate Biofertilizers Support Similar or Higher Tomato Yields and Quality Than Mineral Fertilizer in a Subsurface Drip Fertigation System

Barzee

Edalati

El‐Mashad

et al. 2019

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

This study investigated the effects of applying anaerobically digested food waste and dairy manure-derived biofertilizers to processing tomatoes. The biofertilizers were produced from a pilot scale system consisting of coarse solid separation and ultrafiltration (5,000 Da) with a capacity of approximately 3.8 m 3 •d −1. The coarse solids had particle size >53 µm and were not used for drip fertigation. The liquid concentrate and permeate from the system were both delivered to tomato plants through a subsurface drip fertigation system in a farm-scale cultivation experiment. The results showed that liquid digestate biofertilizers could be effectively delivered to the tomato plants given that steps to ensure suitable particle sizes were maintained prior to delivery. The ultrafiltered dairy manure digestate biofertilizer (DMP) had the highest yield of red tomatoes (7.13 ton•ha −1) followed by the concentrated food waste digestate biofertilizer (FWC) and mineral N fertilizer treatments with 6.26 and 5.98 ton•ha −1 , respectively. The FWC biofertilizer produced tomatoes with significantly higher total and soluble solids contents compared to the synthetically fertilized tomatoes. Few significant differences between the treatments were observed among the pH, color, or size of the red tomatoes. These results indicate promise for the prospect of applying digestate biofertilizer products to tomatoes using the industry standard subsurface drip fertigation method. Additionally, digestate-derived biofertilizers may have potential to increase crop yields as well as certain quality characteristics of the harvested tomato fruit. No changes in soil quality were found among treatments but more study is required to understand long-term effects of biofertilizer applications with regards to soil quality and environmental risks.

show abstract

“…Lagoons with a floating cover could also be used as a digester, which is very cheap for farmers [84]. Qi et al [85] designed and studied an integrated system of biogas production, using a greenhouse for growing vegetables and a pigsty for feeding the pigs in Laiwu, Shandong province, North of China. The biogas produced from swine manure and urine was used for cooking, lighting, or to maintain the temperature inside the greenhouse for optimum vegetable growth and the digestate were used as a fertilizer to replace chemical fertilizers.…”

Section: Other Digestersmentioning

confidence: 99%

Household Biogas Digesters—A Review

2012

View full text Add to dashboard Cite

This review is a summary of different aspects of the design and operation of small-scale, household, biogas digesters. It covers different digester designs and materials used for construction, important operating parameters such as pH, temperature, substrate, and loading rate, applications of the biogas, the government policies concerning the use of household digesters, and the social and environmental effects of the digesters. Biogas is a value-added product of anaerobic digestion of organic compounds. Biogas production depends on different factors including: pH, temperature, substrate, loading rate, hydraulic retention time (HRT), C/N ratio, and mixing. Household digesters are cheap, easy to handle, and reduce the amount of organic household waste. The size of these digesters varies between 1 and 150 m 3 . The common designs include fixed dome, floating drum, and plug flow type. Biogas and fertilizer obtained at the end of anaerobic digestion could be used for cooking, lighting, and electricity.

show abstract

Advantages of the integrated pig-biogas-vegetable greenhouse system in North China

Cited by 49 publications

References 1 publication

Sustainability-based economic and ecological evaluation of a rural biogas-linked agro-ecosystem

Sustainability-based economic and ecological evaluation of a rural biogas-linked agro-ecosystem

Digestate Biofertilizers Support Similar or Higher Tomato Yields and Quality Than Mineral Fertilizer in a Subsurface Drip Fertigation System

Household Biogas Digesters—A Review

Contact Info

Product

Resources

About