CN103396950A - Biogas slurry ecological purification method …
The invention discloses a biogas slurry ecological purification method based on microalgae cultivation. The method comprises the following steps: (1) biogas slurry pretreatment; (2) habituated culture of autotrophic microalgae, namely, obtaining algae strains capable of rapidly growing in 70%- biogas slurry; (3) preparation of a seed solution; (4) a biogas slurry …
CN201923919U - Biogas slurry cyclic utilization and purification ...
The utility model relates to a biogas slurry cyclic utilization and purification treatment system, which is characterized in that the biogas slurry cyclic utilization and purification treatment system comprises a biogas slurry pool, wherein the biogas slurry pool is connected with a sewage pump through a pipeline, the output end of the sewage pump is connected with a …
The Purification of Biogas - Build a Biogas Plant
The desulphurization of biogas is based on a chemical reaction of H 2 S with a suitable substance. The lime process The oldest process is the desulphurization of gases with quick lime, slaked lime in solid form or with slaked lime in liquid form. The process using quick or slaked lime has not been applied on a large scale for a long time.
CN103073120A - Biogas slurry purification technology - Google …
The invention relates to a biogas slurry purification technology. The technology comprises the following steps: placing a humic acid raw powder in a stirred tank, adding water for infiltration and mixing evenly, then slowly adding strong acid and stirring evenly to prepare a purifying agent; and placing biogas slurry in the stirred tank, adding cleaning agent, stirring, standing after reaction ...
Simultaneously upgrading biogas and purifying biogas slurry …
G. lucidum/C. vulgaris was screened as the best fungi-mialgae for biogas slurry purification and biogas upgrading with light/dark ratio of 14h:10h, which was also confirmed by the economic efficiency analysis of the energy consumptions. These results will provide a theoretical foundation for large-scale biogas slurry purifying and biogas ...
Simultaneously upgrading biogas and purifying biogas slurry …
G. lucidum/C. vulgaris was screened as the best fungi-mialgae for biogas slurry purification and biogas upgrading with light/dark ratio of 14 h:10 h, which was also confirmed by the economic efficiency analysis of the energy consumptions. These results will provide a theoretical foundation for large-scale biogas slurry purifying and biogas ...
Purification capacities of ornamental plants to biogas slurry
May 2015; Chinese Journal of Environmental Engineering 9(5):2061-2066; Authors: S. Zhang
CN103663715A - Biotreatment method for efficiently purifying biogas …
The invention belongs to the technical field of biological environmental protection, and relates to a treatment method of wastewater, in particular to a biotreatment method for efficiently purifying biogas slurry with microalgae. The treatment method comprises the steps that the original biogas slurry flows into an aeration tank for aeration pretreatment, and flows into a primary ...
Sustainability | Free Full-Text | The Effect of Biogas Slurry ... - MDPI
The development of ecological circular agriculture has been highly encouraged to recycle agricultural wastes, reduce mineral fertilizer input, and protect the environment. Biogas slurry (BS), a by-product of biogas production generated from anaerobic digestion of animal waste and crop residues, is often considered a substitute to reduce mineral fertilizer input. …
Potential of wood ash in purification of biogas - ScienceDirect
The optimum adsorbent to water ratio was used to study the effects of biogas flow rate on the purification capacity. In addition, the effect of slurry temperature was studied at the optimum ratio and biogas flow rate. The biogas flow rate was varied from 45 ml/min to 250 ml/min and the slurry temperature was varied from 18 °C to 80 °C.
Biogas Upgrading System - Biogas Purifier, Biogas Purification …
Biogas is a mixture of – CH4, CO2, H2S and other traced gases. Basically, it is producing from the anaerobic digestion of animal manure, landfills, food waste and sewage. After pre-treatment of H2S, VOCs, Siloxanes, Ammonia, and H2O; purification steps, biogas is solely upgrade to biomethane, which is a renewable substitute for natural gas.
Performance of three microalgal strains in biogas slurry purification ...
The three microalgal strains were cultivated, namely, Chlorella vulgaris, Scenedesmus obliquus, and Neochloris oleoabundans, by applying mixed light-emitting diode wavelength treatments to biogas slurry in a photobioreactor bag. This study aims to compare the growth and nutrient removal efficiency o …
CN103396950A - Biogas slurry ecological purification …
The invention discloses a biogas slurry ecological purification method based on microalgae cultivation. The method comprises the following steps: (1) biogas slurry pretreatment; (2) habituated culture of autotrophic microalgae, namely, obtaining algae strains capable of rapidly growing in 70%- biogas slurry; (3) preparation of a seed solution; (4) a biogas slurry …
Biogas purification process / treatment - Gazpack
What Is the Biogas Purification Process? Biogas purification can take several forms. Here are a few of the most common: Water Scrubbing. CO2 and H2S are more soluble in water than CH4. Before contact, the biogas is compressed under pressure. Methane, or at least the lion's share of it, rises to the top of the solution where it is then collected.
Performance of three microalgal strains in biogas slurry purification ...
Moreover, biogas slurry purification and biogas upgrading were successfully achieved by co-cultivation of fungi-assisted microalgae pellets at mixed light wavelength of red:blue of 5:5. The ...
Biogas slurry ecological purification device and biogas slurry ...
CN-101602538-B chemical patent summary.
Effects of exogenous GR24 on biogas upgrading and nutrient
To realize the synchronous purification of raw biogas and biogas slurry, the algal-fungal symbiont pellets were cultivated by supplementing strigolactone (GR24) under different mixed LED light wavelengths. The optimal light intensity was proved to be red and blue in the ratio of 5:5. The symbionts t …
Performance of three microalgal strains in biogas slurry …
The three microalgal strains were cultivated, namely, Chlorella vulgaris, Scenedesmus obliquus, and Neochloris oleoabundans, by applying mixed light-emitting diode wavelength treatments to biogas slurry in a photobioreactor bag.
Simultaneously upgrading biogas and purifying biogas …
G. lucidum/C. vulgaris was screened as the best fungi-mialgae for biogas slurry purification and biogas upgrading with light/dark ratio of 14h:10h, which was also confirmed by the economic efficiency analysis of the energy consumptions. These results will provide a theoretical foundation for large-scale biogas slurry purifying and biogas ...
Biogas Purification Plant Manufacturers India - Purification …
We are leading Biogas Purification Plant Manufacturers in India, We can develop Biogas Purification System, Biogas Upgrading Plant and Biogas Purifier. +91 97232 69295. [email protected] Home; About Us. Mission Vision and Values; Our Strength; ... Biogas Equipments. Biogas Slurry Feeding Screw Pump; Digonal / Inclined Side Entry type …
CN103073120A - Biogas slurry purification technology
The invention relates to a biogas slurry purification technology. The technology comprises the following steps: placing a humic acid raw powder in a stirred tank, adding water for infiltration and mixing evenly, then slowly adding strong acid and stirring evenly to prepare a purifying agent; and placing biogas slurry in the stirred tank, adding cleaning agent, stirring, standing after reaction ...
Performance of three microalgal strains in biogas slurry purification ...
The growth medium was obtained from an anaerobic digester in Jiaxing, Zhejiang Province, China. The biogas was pretreated via chemical absorption to decrease the H 2 S concentration to <50 ppm (v/v) (Chung et al., 2006).The biogas slurry was treated using an ultraviolet sterilizer (KCJ-10 W, Konche Water Treatment Co., Ltd., PR China) for 2 min and …
Co-cultivation of fungal-microalgal strains in biogas slurry …
Performance of three microalgal strains in biogas slurry purification and biogas upgrade in response to various mixed light-emitting diode light wavelengths. Bioresour. Technol. 187, 338–345 (2015).
Biogas recirculation technology: Effect on biogas purification, slurry …
Biogas recirculation technology: Effect on biogas purification, slurry characteristics, microbial activity and energy consumption Author: Mahmood Mahmoodi-Eshkaftaki, Ehsan Houshyar Source: Environmental technology & innovation 2020 v.19 pp. 100867 ISSN: 2352-1864
Recycling system of biogas slurry purification and …
Download scientific diagram | Recycling system of biogas slurry purification and upgrading of biogas by microalgae-based technology from publication: Removal of …
Biogas slurry purification technology - Patent CN …
CN-103073120-A chemical patent summary.
Effects of Biogas Slurry Utilization in Long-Term on Soil …
biogas slurry irrigation can slow down the over eutrophication of farmland fertility [23], and improve soil microbial biomass and activity [24,25], so as to realize the sustainable utilization of soil. The output of biogas slurry is more than 300 million tons per
Effects of microalgae-bacteria inoculation ratio on biogas slurry ...
In this study, in order to effectively develop high-performance microalgae-bacteria symbiosis system, the experiments on the purification of biogas slurry using mono-cultures and co-cultures of Chlorella vulgaris and Shinella sp. were conducted.
Biocapture of CO2 by Different Microalgal-Based Technologies for Biogas …
The order of both the biogas slurry purification and biogas upgrading is ranked the same, that is Chlorella vulgaris–Ganoderma lucidum > Chlorella vulgaris–activated sludge > Chlorella vulgaris under different light intensities. For all cultivation methods, the moderate light intensity of 450 μmol m−2 s−1 is regarded as the best choice
Purification capacity of Myriophyllum spicatum for biogas slurry …
Download Citation | Purification capacity of Myriophyllum spicatum for biogas slurry from pig farms | This study investigated the purification capacity of Myriophyllum spicatum for biogas slurry ...
The Purification of Biogas
Dissolved H2S is contained in the fermentation slurry. An equilibrium is set up between the dissolved H 2 S and the H 2 S in the gas phase. The dissolved H 2 S in high concentrations can be toxic to the bacteria in the slurry. It can inhibit the production of biogas and cause its composition to alter.
Chlorella and application thereof in biogas slurry purification ...
CN-109234167-B chemical patent summary.
Co-cultivation of fungal-microalgal strains in biogas slurry and biogas …
The best nutrient removal and biogas purification could be achieved by co-cultivation of C. vulgaris and G. lucidum with 55% initial CO 2 content. The maximum mean COD, TN, TP and CO 2 removal efficiency can reach 68.29%, 61.75%, 64.21% and 64.68%, respectively under this condition.
Biogas slurry purification technology - Patent CN-103073120-A
CN-103073120-A chemical patent summary.
CN105647792A - Biogas slurry multistage-fermentation and …
The biogas slurry multistage-fermentation and multistage-filtering purification system has the advantages that large-batch factory production is convenient; great convenience is brought for transportation and installation; in addition, the whole system is buried under the ground; plants can be planted in gaps above and beside pools; a large ...
Purification of Biogas using Chemical Scrubbing and …
In this paper results obtained during experiments on biogas purification by chemical scrubbing i)) dry lime and potassium hydroxide and ii) aqueous solution of Caustic and lime are shown. ... clean fuel in the form of biogas whereas slurry available from digester can be used as a good quality compost. Biogas is ...