Abstract:
The present invention relates to a pot with a lid available as a pot stand wherein the lid can be used as a stand of a pot body. The pot with a lid available as a pot stand comprises the pot body having an opening upper part and containing food therein through the opening part and a lid opening and closing the opening part and having a handle on the upper side. Herein, on the lower part of the pot body, an insertion groove is formed and the handle has a form inserting to the insertion groove whereby the lid can be used for the stand of the pot body while being inserted to the insertion groove.
Abstract:
The present invention relates to a method for manufacturing a biochar using sewage sludge and a novel purpose for a heavy metal adsorption of the biochar manufactured by the same. More specifically, the present invention relates to Pb-immobilization effect in soil contaminated by heavy metal, derived from a biochar manufactured in a specific process using sewage sludge. The biochar manufactured from sewage sludge has a function of adsorbing heavy metal in soil which is contaminated by heavy metal, and is especially effective in adsorbing lead (Pb). Therefore, the biochar can be useful as a material for improving and stabilizing soil which is contaminated by lead (Pb). Moreover, since sewage sludge which requires a delicate treatment is used as a component, the present invention is capable of providing solutions to both recycling of waste resource and prevention of environmental pollution.
Abstract:
PURPOSE: An anaerobic digestion apparatus using microwave is provided to efficiently produce biogas using the microwave as pretreatment source and a heating source at the same time and to obtain high heat efficiency without the loss of heat. CONSTITUTION: An anaerobic digestion apparatus using microwave comprises: a microwave generator(10) offering the microwave which is required to the anaerobic digestion; an anaerobic digestion tank(11) which is installed inside the microwave generator and generates the anaerobic digestion reaction of organic wastes; a gas storage tank(13) which is connected through a piping(12) of the anaerobic digestion tank and collects methane gas; a temperature sensor(14) which is extended to the inner part of the anaerobic digestion tank and measures a temperature of the anaerobic digestion; and a digestion tank controller(15) controlling the operation of the microwave generator.
Abstract:
본발명은티탄염을이용한폐수내 인의제거방법에관한것이다. 본발명은폐수내 인의제거를위해인체에무해한티타늄응집제를사용하므로유독성의알루미늄응집제를이용하는방법에비해안전성이더 우수하다. 또한, 본발명의방법을통해정화된방류수가중성 pH를유지하므로방류수의 pH 조정을위한후처리가필요없어후처리비용을절약할수 있을뿐만아니라그로인한 2차오염을예방할수 있다. 또한, 본발명의방법을통해생성된응집체는소성과정을거쳐인으로도핑된티타늄산화물또는이산화티탄염(TiO)으로재생될수 있으므로경제성이있으며하수슬러지의발생도최소화할수 있다.