8 results about "Microbial loop" patented technology

The invention discloses a method for preparing a soil conditioner from fly ash and application, and belongs to the field of soil improvement and solid waste recycling, the method comprises the steps of fly ash grading screening, microwave-mechanical synergistic activation, acid-base modification, formula compounding, secondary biological activation and forming post-treatment, and the soil conditioner is prepared through multi-element activation and compounding. The activity and pore structure of the fly ash are improved. According to the method, the raw material utilization rate is high, the energy consumption is reduced by over 30%, the cost is low, and the prepared conditioner can remarkably reduce the pH and the total salt content of the saline-alkali soil, increase the porosity, organic matter and nutrients of the soil and improve the microbial environment; and the special formula can be used for promoting the growth of crops and increasing the yield by 15-20%, so that the special fertilizer is easy to industrially popularize and has both environmental and economic benefits.

This invention relates to the field of ecological equipment technology, specifically disclosing an ecological toilet suitable for locomotive drivers and a control method for the ecological toilet. The toilet includes a fermentation tank and microbial cells within it, a heating device, a stirring device, a temperature sensor, a humidity sensor, a high-frequency vibration generator, and control components. The high-frequency vibration generator is mounted on the humidity sensor for cleaning it. The optimal bioactivity parameters of the microbial cells are determined using the temperature and humidity sensors, and the stirring device is controlled to perform corresponding stirring actions based on these optimal parameters. Precise humidity data is collected by the humidity sensor, thereby accurately controlling the microbial environment within the ecological toilet and improving the biodegradation effect.

The invention discloses a multi-dimensional quantitative detection method for microbial corrosion resistance of Cr-containing steel. The method comprises the following steps: a microbial challenge test: inoculating sulfate reducing bacteria into a culture medium, and exposing a sample in a microbial environment; performing quantitative analysis on corrosion products: performing ultrasonic rust removal on the sample by using an acid pickling solution, then calculating a weightlessness corrosion rate, and quantifying the adhesion amount of microorganisms on the surface of the sample; multi-mode electrochemical testing: monitoring the open-circuit potential and linear polarization resistance of the sample, and performing electrochemical impedance spectroscopy and potentiodynamic polarization curve testing to obtain corrosion current density and polarization resistance; surface analysis: analyzing the corrosion morphology and element distribution of the sample through a scanning electron microscope and an energy disperse spectroscopy, and determining the chemical state of the chromium element by adopting X-ray photoelectron spectroscopy to obtain the stability and the sulfur content of a passive film; and evaluating the corrosion degree: establishing a coupling model of the corrosion current density, the polarization resistance, the passivation film stability, the microorganism adhesion amount and the sulfur content, and calculating the corrosion degree.

The invention is suitable for the cross technical field of agricultural environment microbial ecology and heavy metal pollution remediation, and provides a method for analyzing a rhizosphere microdomain microorganism driving mechanism for regulating cadmium accumulation of oilseed rape through a selenium fertilizer. And the physical separation of rhizosphere and non-rhizosphere soil is realized by synchronously adopting a special rhizosphere compartment micro-area device. By measuring the Cd / Se content of plants and soil, the rhizosphere microbial community structure, the functional gene (dsrA) abundance and microorganism-environmental factor correlation analysis, the system reveals that the selenium fertilizer (500-1000g Se / hm < 2 >) drives rhizosphere to enrich key functional microorganisms such as desulfothiones and geobacteria, and the sulfate reducing capacity of the selenium fertilizer (500-1000g Se / hm < 2 >) is remarkably improved (the abundance of the dsrA gene is increased by 250%); therefore, a microbial mechanism of cadmium bio-availability is reduced. The invention provides methodological and theoretical support for farmland heavy metal pollution remediation by utilizing microbial regulation and control.

The utility model discloses a kind of biogas slurry fertilizer aerobic fermentors, involve biogas slurry processing technical field.Its structure includes flatbed cart and the fermentation tank, air pump and sewage pump installed on flatbed cart;S-shaped arrangement's aeration gas guide pipe is arranged in the bottom of fermentation tank, and aeration gas guide pipe one end is connected with air pump air outlet after being through fermentation tank;Aeration gas guide pipe is equipped with several aeration heads;One row of hanging rods is fixed between one relative inner wall of fermentation tank upper end portion;One row of fiber bundle fillings is installed on hanging rod.The utility model is combined by flatbed cart, fermentation tank, air pump and sewage pump to strengthen microbial decomposition, improve biogas slurry quality and safety, guarantee biogas tank stable operation, promote resource utilization and handle substandard biogas slurry in time, maintain biogas tank inner microbial environment balance, guarantee biogas continuous and stable generation;Equipment is flexible and efficient, and strong adaptability, and operation is simple and convenient, maintenance cost is low, effectively solve rural biogas slurry processing problem.

The invention provides a submerged plant-ecological interface system for in-situ treatment of water bodies, which provides a functional microbial community and fertilizer for the growth of submerged plants, so that the submerged plants are rooted in the ecological interface to form a plant rhizosphere microbial environment with the ecological interface, and a submerged plant-ecological interface system is constructed, which can effectively improve the problems of high planting environment requirement, large construction difficulty, low planting survival rate, slow water purification effect, high maintenance cost and the like faced by the existing submerged plant purification water body; the plants and microorganisms are organically combined together to form an efficient biological repair composite, which has a significant pollution removal, water purification and water body ecological restoration effect, and has a good application prospect in the field of water pollution treatment.

This invention provides a reporter phage, its construction method, and its applications. The reporter phage comprises a nucleic acid sequence encoding a reporter protein and at least one receptor-binding protein, wherein the receptor-binding protein is partially or entirely engineered to enable the reporter phage to specifically infect specific capsular types of Klebsiella pneumoniae. The reporter phage provided by this invention enables sensitive and specific detection of Klebsiella pneumoniae in complex genetic and multi-microbial environments. In particular, the scalable and iteratively evolving reporter phage platform provided by this invention offers a universal diagnostic tool for addressing capsular diversity, guiding phage-based therapies, and providing information for epidemiological surveillance.

The invention provides a water treatment system and method for in-situ expansion denitrification and dephosphorization. The system comprises a first treatment section, a second treatment section, a third treatment section and a fourth treatment section which are sequentially arranged and communicated, and a precipitation section communicated with the fourth treatment section, wherein different microbial reaction environments are formed in the same treatment chain in each treatment section through differentiated setting of operating conditions, so that water to be treated is treated in the first treatment section to the fourth treatment section in a continuous and / or circulating manner; a composite powder carrier filler is applied in the second treatment section and can flow along with the mud-water mixture, so that the microorganisms growing in a suspension manner and the microorganisms growing in an attached manner form a coexisting composite microorganism environment; at least part of the sludge flows back to the second treatment section through the recovery device. By adopting the scheme, in-situ capacity expansion can be realized under the conditions of not increasing land and not stopping production, and the sewage treatment effect is improved.