公开(公告)号：KR1020020074361A

公开(公告)日：2002-09-30

申请号：KR1020010014392

申请日：2001-03-20

Applicant: 한국화학연구원

Inventor： 서태수 ,  김광한 ,  김효중 ,  곽중협 ,  윤상호 ,  정진구

IPC: A01G1/00

Abstract: PURPOSE: A process of preparing artificial culture soil by mixing low quality ceramic material with additives such as paper making sludge, pulp waste water, etc. is provided which improves various physical properties such as air permeability, drainability, water retention properties and compression strength, etc., reduces manufacturing cost and recycles industrial wastes. CONSTITUTION: One or more components selected from kaolin, zeolite, coal ash and bentonite are mixed with paper making sludge and elvan at a speed of 300rpm, added with water, pulp waste water and sodium silicate, dried and then calcined at 900 to 1,100deg.C. Thus the obtained culture soil comprises 75 to 95% by weight of ceramic material containing the above one or more components, 2 to 15% by weight of paper making sludge and 3 to 7% by weight of elvan, and has a bulk density of 0.83 to 0.95g/ml, a compression strength of 26 to 64kg/cm¬2 and a void ratio of 50±5%.

Abstract translation: 目的：提供通过混合低品质陶瓷材料与造纸污泥，纸浆废水等添加剂混合制备人造培养土的方法，改善了各种物理性能，如透气性，排水性，保水性和抗压强度， 降低制造成本，回收工业废物。 构成：选自高岭土，沸石，煤灰和膨润土中的一种或多种组分以300rpm的速度与造纸污泥和埃尔文混合，加入水，纸浆废水和硅酸钠，干燥，然后在900〜1100℃ 。C。 因此，得到的培养土包含75〜95重量％的含有上述一种或多种组分的陶瓷材料，2〜15重量％的造纸污泥和3〜7重量％的elvan，堆积密度为0.83 至0.95g / ml，压缩强度为26〜64kg / cm 2，空隙率为50±5％。