JPS6346288A - Soil improving agent - Google Patents
Soil improving agentInfo
- Publication number
- JPS6346288A JPS6346288A JP62198635A JP19863587A JPS6346288A JP S6346288 A JPS6346288 A JP S6346288A JP 62198635 A JP62198635 A JP 62198635A JP 19863587 A JP19863587 A JP 19863587A JP S6346288 A JPS6346288 A JP S6346288A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- soil
- improving agent
- bacteria
- treated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002689 soil Substances 0.000 title claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 title claims abstract 4
- 239000010802 sludge Substances 0.000 claims abstract description 30
- 239000002699 waste material Substances 0.000 claims abstract description 5
- 238000010000 carbonizing Methods 0.000 claims abstract description 4
- 239000008187 granular material Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 5
- 241000894006 Bacteria Species 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008635 plant growth Effects 0.000 abstract description 3
- 230000004913 activation Effects 0.000 abstract description 2
- 238000010304 firing Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract description 2
- 230000001546 nitrifying effect Effects 0.000 abstract description 2
- 230000035699 permeability Effects 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 241000186046 Actinomyces Species 0.000 abstract 1
- 230000003381 solubilizing effect Effects 0.000 abstract 1
- 239000002341 toxic gas Substances 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000003516 soil conditioner Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 241000219315 Spinacia Species 0.000 description 1
- 235000009337 Spinacia oleracea Nutrition 0.000 description 1
- -1 and if used as is Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は製紙工場より排出されるパルプスラッジを焼
成炭化させた後に粒状選別した土壌改良剤に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a soil conditioner prepared by calcination and carbonization of pulp sludge discharged from a paper mill and then granular separation.
従来の技術
従来、製紙工場においては大量の廃液が排出され、該廃
液を汚泥処理装置で処理して清浄な上澄液を放流してい
るものである。しかし、汚泥処理装置で処理した後のパ
ルプスラッジは山岳部に投棄したり、或いは焼却炉で焼
却した後に廃棄していたものである。BACKGROUND OF THE INVENTION Conventionally, a large amount of waste liquid is discharged in a paper mill, and the waste liquid is treated with a sludge treatment device and a clean supernatant liquid is discharged. However, pulp sludge treated with a sludge treatment device is either dumped in a mountainous area or disposed of after being incinerated in an incinerator.
発明が解決しようとする問題点
しかしながら、パルプスラッジを山岳部に投棄した場合
は悪臭のために公害を発生し易く、焼却炉で焼却した場
合多大な経費を要するものである。Problems to be Solved by the Invention However, when pulp sludge is dumped in mountainous areas, it tends to cause pollution due to bad odors, and when it is incinerated in an incinerator, it costs a lot of money.
そこで、出願人はパルプスラッジを焼成炭化させた後に
燐酸処理した土壌改良剤を研究開発し、昭和６１年特許
願第１４１５９４号として出願したわけである。しかし
ながら、パルプスラッジを焼成炭化させた炭化スラッジ
において、炭化スラッジの粉の中に２００ｐｐｍ位の亜
鉛を含有することが解り、そのままの状態で使用すると
土壌内に亜鉛が堆積して植物の成育を阻害する恐れがあ
る。Therefore, the applicant researched and developed a soil conditioner in which pulp sludge was calcined and carbonized and then treated with phosphoric acid, and filed the application as Patent Application No. 141594 in 1988. However, it has been found that carbonized sludge obtained by firing and carbonizing pulp sludge contains about 200 ppm of zinc in the powder, and if used as is, zinc will accumulate in the soil and inhibit the growth of plants. There is a risk that
この様な問題点を解消する目的において、本発明は昭和
６１年特許願第１４１５９４号の出願分割に係るもので
あって、炭化スラッジを粒状選別して亜鉛を含有した粉
を除去し、不純物の少ない土壌改良剤を得る様になした
ものである。In order to solve such problems, the present invention is related to the division of patent application No. 141594 filed in 1985, and involves sorting carbonized sludge into granules to remove zinc-containing powder and removing impurities. It is designed to obtain a small amount of soil conditioner.
問題点を解決するための手段 以下、本発明の詳細な説明する。Means to solve problems The present invention will be explained in detail below.
製紙工場より排出される廃液を汚泥処理装置で処理した
後のパルプスラッジを回転キルンを利用した焼却炉に投
入して９００＠Ｃ位の温度で焼成して炭化スラッジとな
し、該炭化スラッジを選別機にかけて粉を除去し径が０
，２乃至２ｃｍ位の粉状に仕上げたものである。Pulp sludge after treating waste liquid discharged from a paper mill with a sludge treatment device is put into an incinerator using a rotary kiln and burned at a temperature of about 900＠C to form carbonized sludge, and the carbonized sludge is sorted. The powder is removed by a machine and the diameter is 0.
, 2 to 2 cm in size.
作用効果
本発明においては、パルプスラッジを炭化させた炭化ス
ラッジを選別機を用いて粒状選別したものである。製紙
工場においては、古紙を一部原料として使用するため、
古紙に付着しているインクの成分中に亜鉛を含有し、こ
れがパルプスラッジの中に不純物として堆積し、パルプ
スラッジを炭化させた炭化スラッジの粉の中に２００ｐ
ｐｍ位、炭化スラッジの粒子の中には５０ ｐ ｐｍ位
が残留するものである。従って、炭化スラッジを粒状選
別することによって不純物としての亜鉛の含有率は低下
するものである。しかし、粒状の炭化スラッジはｐＨ８
以上でアルカリ性が高く、燐酸吸収率が高いため、他の
土壌や堆肥に対しての混合率は５％位までである。この
粒状炭化スラッジを土壌改良剤として育苗床、圃場等に
混合することにより土壌を団粒構造となしてＶＡ菌根菌
、硝化菌、ホウセン菌等の増殖を促進させ、また、保水
性、透水性を向上させ、土中の熱吸収率もよく、土壌内
で発生する窒素ガスや有害ガスを吸収して水溶化させな
がら根の活性化を促し、植物の成育を促進させ得る等、
前記した顕著な諸効果を奏するものである。Effects In the present invention, carbonized sludge obtained by carbonizing pulp sludge is separated into particles using a sorter. In paper mills, some recycled paper is used as raw material, so
The ink that adheres to waste paper contains zinc, which is deposited as an impurity in pulp sludge, and 200p is deposited in the carbonized sludge powder that carbonizes the pulp sludge.
pm, and about 50 ppm remains in the carbonized sludge particles. Therefore, by separating the carbonized sludge into particles, the content of zinc as an impurity is reduced. However, granular carbonized sludge has a pH of 8
Since it is highly alkaline and has a high phosphoric acid absorption rate, the mixing ratio with other soils and compost is limited to about 5%. By mixing this granular carbonized sludge as a soil conditioner in nursery beds, fields, etc., the soil becomes aggregated, promoting the growth of VA mycorrhizal bacteria, nitrifying bacteria, spinach bacteria, etc., and also improves water retention and water permeability. It has a good heat absorption rate in the soil, absorbs nitrogen gas and harmful gases generated in the soil, makes them water soluble, promotes root activation, and promotes plant growth.
This provides the remarkable effects described above.
Claims (1)
スラッジを焼成、炭化させ、該炭化スラッジを粒状選別
したことを特徴とする、土壌改良剤。1. A soil improvement agent, which is obtained by burning and carbonizing pulp sludge after treating waste liquid discharged from a paper mill, and sorting the carbonized sludge into granules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62198635A JPS6346288A (en) | 1987-08-07 | 1987-08-07 | Soil improving agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62198635A JPS6346288A (en) | 1987-08-07 | 1987-08-07 | Soil improving agent |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14159486A Division JPS63205389A (en) | 1986-06-17 | 1986-06-17 | Soil conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6346288A true JPS6346288A (en) | 1988-02-27 |
Family
ID=16394482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62198635A Pending JPS6346288A (en) | 1987-08-07 | 1987-08-07 | Soil improving agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6346288A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002065060A (en) * | 2000-08-24 | 2002-03-05 | Douei Shigyo Kk | Sod and raising base for the same |
| JP2013068459A (en) * | 2011-09-21 | 2013-04-18 | San-Ei Regulator Co Ltd | Method for improving and purifying radioactive substance contaminated soil |
| US10619668B2 (en) | 2015-01-28 | 2020-04-14 | Ntn Corporation | Tapered roller bearing |
-
1987
- 1987-08-07 JP JP62198635A patent/JPS6346288A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002065060A (en) * | 2000-08-24 | 2002-03-05 | Douei Shigyo Kk | Sod and raising base for the same |
| JP2013068459A (en) * | 2011-09-21 | 2013-04-18 | San-Ei Regulator Co Ltd | Method for improving and purifying radioactive substance contaminated soil |
| US10619668B2 (en) | 2015-01-28 | 2020-04-14 | Ntn Corporation | Tapered roller bearing |
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