A composting method accompanying aerobic or anaerobic digestion and a composting device employing the method are provided to utilize a liquid fertilizer which is byproduct of livestock excretion treatment as useful resources, to fix nitrogen in soil for time-release fertilizer and to transform liquid fertilizer into solid fertilizer which is transported or stored more easily by water content control process through mixing liquid fertilizer with hydrophilic absorptive material A composting method accompanying aerobic or anaerobic digestion comprises: concentration process for liquid fertilizer; water content control process through mixing liquid fertilizer concentration with hydrophilic absorptive material; and solidifying process for the mixture comprising liquid fertilizer concentration and hydrophilic absorptive material The liquid fertilizer is concentrated to 55-90% The absorptive material is natural zeolite in the form of stone or clay, or artificial zeolite A mixing ratio of the liquid fertilizer and zeolite in the mixture is 1:05 to 1:25 by weight The concentration degree and the mixing ratio of the liquid fertilizer and the zeolite in the mixture are controlled in order to maintain the water content of the mixture comprising the liquid fertilizer and zeolite as 7-13% The composting method optionally comprises initial pH control process that comprises adding strong acid to the liquid fertilizer before concentration process A composting device employing the method comprises: pH control part(1) which controls initial pH of liquid fertilizer; a pressure evaporation part(2) which concentrates the liquid fertilizer from the pH control part(1); an absorptive material mixing part(310) for mixing the concentrated liquid from the pressure evaporation part(2) with absorptive material; a solidifying treatment part(3) which solidifies the mixture from the absorptive material mixing part(310) to produce particulate solid fertilizer; and an energy supplying part(4) comprising a gas boiler(410) and a control valve(420), which controls steam generated from the gas boiler(410) to be supplied for the pressure evaporation part(2) The pH control part(1) comprises a liquid fertilizer retention tank(110) for storing liquid fertilizer from an anaerobic treatment system(5), a storing tank(120) for strong acid, a control valve(130) to control the amount of strong acid for pH control, a liquid fertilizer escort pump(140) which escorts liquid fertilizer in the retention tank(110) to the pressure evaporation part(2), and a detector(150) for the acidity of the liquid fertilizer in the retention tank(110) The pressure evaporation part(2) has plural pressure evaporators(210a,210b,210c), plural heat exchangers(220a,220b,220c) for each pressure evaporator, a recovery line(230) for recycling some water generated from the pressure evaporators(210a,210b,210c) for a heat exchange, condenser(240) for supplying condensed water from water generated from the pressure evaporators(210a,210b,210c), and a cooling tower(250) The absorptive material mixing part(310) comprises a hopper(311) and a feeder(312), and the hopper(311) supplies the feeder(312) with absorptive material The feeder(312) transports the absorptive material to a pelletizer(320) The solidifying treatment part(3) comprises a pelletizer(320), a drying part(330) and a packaging part(340)

Method for fertilization treatment of byproduct accompanying digestion treatability of livestock excretion and device for using the same

A method for recycling livestock excretions is provided to enhance an efficiency by recycling the livestock excretions by a systematic method, and to solve a stench problem. A method for recycling livestock excretions includes the steps of: collecting livestock excretions from farmhouses; putting the collected livestock excretions into an impurity/sand removal tank to remove impurities and sand from the excretions; charging the resultant livestock excretions into a livestock excretion silo, and removing harmful materials; charging the livestock excretions into a solid-liquid separator to separate the excretions into feces and urine; charging the livestock feces into a composting tank, and adding microorganisms to compost the livestock feces while stirring the livestock feces; charging the livestock urine into a liquid fertilizer fermentation tank, and adding microorganisms to obtain a liquid fertilizer while stirring the livestock urine; and storing the fermented liquid fertilizer in a liquid fertilizer silo.

Resourcization method of animal excretion

The present invention discloses a composition, method of preparation of said composition and method of biologically controlling fungal infection in plants, particularly the basal stem rot disease primarily caused by Ganoderma species. Said composition comprises of actinomycetes bacteria from Streptomyces species, and one type of microbial carrier.

Compositions for controlling ganoderma disease in plants and method thereof by using soil actinomycetes

The present invention is an in-vessel high rate composting apparatus for processing of oil palm biomass, organic and municipal wastes to produce compost product. The composting apparatus consists of a vertical position and cylindrical shape vessel (100) with conical bottom (2) design, materials feeding (1) and product discharge systems (3), a screw impeller (12) for axial mixing, aeration (14) and carbon dioxide (CO 2 ) removal systems and a leachate collection system (15). The optimum composting conditions in the vessel will be maintained by means of programming logic controller (PLC) on key parameters such as temperature, oxygen (O 2 ) level, moisture level and carbon dioxide (CO 2 ) level. The compost product could be let to mature inside the vessel or let to cure elsewhere for the completion of the compost product

Novel in-vessel high rate composter

An apparatus for preparing a liquefied fertilizer using kaolin bricks is provided to ferment a large amount of livestock excretions rapidly by activating degradation of microorganisms even with a relatively less amount of air An apparatus for preparing a liquefied fertilizer using kaolin bricks includes: a fermentation tank(10) having a livestock excretion inlet(11) and a liquefied fertilizer outlet(12); an air supply unit(20) which comprises an air line(22) having a fan(22) at one end thereof and including at least one air nozzle(23) so as to inject air into the fermentation tank; monolayered or multilayered kaolin bricks(30) which are placed inside the fermentation tank and have at least one microorganism inlet(31); and a heater(40) which raises the internal temperature of the fermentation tank Further, a temperature sensor for detecting a temperature in the fermentation tank, and a controller is additionally contained in order to control the heater

Apparatus for liquefied fertilizer production using kaolin brick and process of kaolin brick

PURPOSE: Provided is a treatment method of excretions/wastewater without production of by-product. The excretions/wastewater is evaporated at 60-70deg.C under low vacuum pressure being -76mmHg in a concentration tank (20). And C/N ratio for fermentation is controlled at 25-35 by using sawdust, chaff, and rice straw as carbon source. Also, water content is controlled by vermiculite that is expandable thin-film. The vermiculite absorbs water of 300-500 wt.% based on the vermiculite weight. And, the vermiculite is porous, so the vermiculite is used as media for metabolism of microorganisms. Therefore, solid material is used as compost, and liquid is used as liquid manure without production of by-product. CONSTITUTION: The method comprises the sequential steps: (1) concentration that water is evaporated by heating; (2) mixing of excretions/wastewater, sawdust/chaff, and thin-film expanded vermiculite; (3) fermentation of the above mixture; (4) separation of solid material and liquid from the fermented mixture.

Treatment method of waste water and excrementitious matter

PURPOSE: An organic waste composting system is provided to shorten fermentation time, produce good quality fertilizer, and remove bad smell by aerobic fermenting organic waste materials with fermenting materials including vermiculite. CONSTITUTION: The composting system comprises the parts of: a storing vessel (10) keeping organic wastes; a fermenting vessel(30) in which organic wastes ferment under aerobic condition; a water supplier(70), connected to the fermenting vessel, supplying water in fermenting so that the mixture of wastes and fermenting materials can contain 50% of water; a fermenting material-supplier(40) for controlling water content and C/N ratio of organic wastes, wherein the fermenting materials are saw dust, rice hull and rice straw, and vermiculite fired over 800-1100deg.C for controlling C/N ratio and water content, respectively; an O2 supplier for flowing O2 gas into the fermenting vessel; a mixer set on the upper side of the fermenting vessel.

Compost manufacturing equipment with an organism waste articles

PURPOSE: An apparatus and a method for odor control using vermiculite are provided, wherein vermiculite is used as adsorbent and it is recycled as moisture controller in composting. CONSTITUTION: The odor control apparatus is comprised of an absorption tower(1), a gas inlet(2) provided to a side of the absorption tower, a prefilter provided in the absorption tower, an absorption layer provided in the absorption tower, a stack(7), a slide gate, a top door, and a gas exhaust fan(3). The method using the apparatus includes the steps of introducing odor gas to the absorption tower through the gas inlet; removing dust and moisture from the odor gas by the prefilter; removing and absorbing odor substance from the odor gas by the absorption layer which is a vermiculate filled layer; and discharging treated gas to the air through the stack by the gas exhaust fan, wherein the vermiculate is exfoliated and expanded by being heated at a temperature of 950 to 110°C and dried for 1 hour before being provided in the absorption tower.

Lee Eun Gyeong

Papers

Treatment method of waste water and excrementitious matter

Compost manufacturing equipment with an organism waste articles

Odor treatment equipment using vermiculite and process using thereof