JP4557633B2 - How to remove ammonia - Google Patents
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- JP4557633B2 JP4557633B2 JP2004240721A JP2004240721A JP4557633B2 JP 4557633 B2 JP4557633 B2 JP 4557633B2 JP 2004240721 A JP2004240721 A JP 2004240721A JP 2004240721 A JP2004240721 A JP 2004240721A JP 4557633 B2 JP4557633 B2 JP 4557633B2
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims description 64
- 229910021529 ammonia Inorganic materials 0.000 title claims description 29
- 238000000034 method Methods 0.000 claims description 20
- 239000010802 sludge Substances 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 239000010813 municipal solid waste Substances 0.000 claims description 4
- GALJOEMOAKHCBH-UHFFFAOYSA-N (3-acetyloxy-2-bromo-2-nitropropyl) acetate Chemical compound CC(=O)OCC(Br)([N+]([O-])=O)COC(C)=O GALJOEMOAKHCBH-UHFFFAOYSA-N 0.000 claims description 3
- 239000010800 human waste Substances 0.000 claims description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 15
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 14
- 230000000694 effects Effects 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 238000009472 formulation Methods 0.000 description 6
- 239000010865 sewage Substances 0.000 description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 description 5
- -1 diethylene glycol Chemical class 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 235000019645 odor Nutrition 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000010842 industrial wastewater Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 150000004763 sulfides Chemical class 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- MUXOBHXGJLMRAB-UHFFFAOYSA-N Dimethyl succinate Chemical compound COC(=O)CCC(=O)OC MUXOBHXGJLMRAB-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 238000004737 colorimetric analysis Methods 0.000 description 2
- 239000010794 food waste Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000012263 liquid product Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- FMNZAHDAULEOSO-UHFFFAOYSA-N 2,2-dibromo-2-nitroethanol Chemical compound OCC(Br)(Br)[N+]([O-])=O FMNZAHDAULEOSO-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- QCAHUFWKIQLBNB-UHFFFAOYSA-N 3-(3-methoxypropoxy)propan-1-ol Chemical compound COCCCOCCCO QCAHUFWKIQLBNB-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- LVDKZNITIUWNER-UHFFFAOYSA-N Bronopol Chemical compound OCC(Br)(CO)[N+]([O-])=O LVDKZNITIUWNER-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- UDSFAEKRVUSQDD-UHFFFAOYSA-N Dimethyl adipate Chemical compound COC(=O)CCCCC(=O)OC UDSFAEKRVUSQDD-UHFFFAOYSA-N 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 1
- 229940075557 diethylene glycol monoethyl ether Drugs 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- LDCRTTXIJACKKU-ARJAWSKDSA-N dimethyl maleate Chemical compound COC(=O)\C=C/C(=O)OC LDCRTTXIJACKKU-ARJAWSKDSA-N 0.000 description 1
- XTDYIOOONNVFMA-UHFFFAOYSA-N dimethyl pentanedioate Chemical compound COC(=O)CCCC(=O)OC XTDYIOOONNVFMA-UHFFFAOYSA-N 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910000042 hydrogen bromide Inorganic materials 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- RSAZYXZUJROYKR-UHFFFAOYSA-N indophenol Chemical compound C1=CC(O)=CC=C1N=C1C=CC(=O)C=C1 RSAZYXZUJROYKR-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 1
- 229960000907 methylthioninium chloride Drugs 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 229910021470 non-graphitizable carbon Inorganic materials 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229940113115 polyethylene glycol 200 Drugs 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 239000004563 wettable powder Substances 0.000 description 1
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- Treating Waste Gases (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
本発明は、アンモニアの除去方法に係り、特に、生ゴミ、家庭排水、産業排水、下水、し尿等、及びこれらの処理施設での汚泥処理中の活性汚泥、排水処理装置等の処理後に残る汚泥、濃縮泥及び脱水汚泥等の固体状物、液体状物、気体状物に含有又は発生するアンモニアの除去方法に関する。 The present invention relates to a method for removing ammonia, in particular, garbage, domestic waste water, industrial waste water, sewage, night soil, etc., and activated sludge in the sludge treatment with these treatment facilities remain after processing, such as waste water treatment apparatus sludge, solid matter such as concentrated sludge and dewatering sludge, liquid-like material, a process for the removal of containing or generating to luer ammonia in the gaseous product.
工場で発生する排ガスや排水には硫化水素及びアンモニア等が含まれている。最近、地域社会においても、環境保全への関心が高まっており、大気汚染、水質汚濁、土壌汚染、悪臭等に対して種々の対策が取られている。悪臭や臭気に対する感覚が敏感になって来ているにもかかわらず、他の汚染対策に比べて立後れている。特に、地域社会と密接な関係を持つ生ゴミ、下水、し尿、排水処理場から発生する硫化水素、メチルメルカプタン等の硫化物類及び／又はアンモニアが地域住民とのトラブルに発展しているところも見受けられる。その他の場面でも硫化水素及びアンモニアの発生が問題となっている。 The exhaust gas and waste water generated at the factory contain hydrogen sulfide, ammonia, and the like. Recently, in the local community, interest in environmental conservation has been increasing, and various measures have been taken against air pollution, water pollution, soil pollution, bad odor, and the like. Despite the increasing sensitivity to bad odors and odors, it has fallen behind other pollution measures. In particular, there are places where trash, sewage, human waste, hydrogen sulfide generated from wastewater treatment plants, and sulfides such as methyl mercaptan and / or ammonia, which are closely related to the local community, have developed into troubles with local residents. It can be seen. In other situations, the generation of hydrogen sulfide and ammonia is a problem.
このような悪臭の原因となる硫化水素等を除去する方法として、アルカノールアミンに吸収させる方法（特許文献１）、また硫化物の除去方法として、ハロニトロアルカノールを利用する方法（特許文献２）が知られている。更に、吸着作用を利用する方法が各種提案されている。例えば、炭素微結晶及び難黒鉛化炭素からなる活性炭（特許文献３）や銅成分を担持した多孔質担体を使用する方法（特許文献４）が知られている。
しかし、アルカノールアミンは、化合物によっては、可燃性で、爆発性の混合気体を生じることもあり、その取扱いには、危険性があり、その利用には、特別の設備を必要とする。また、ハロニトロアルカノールの中で、２，２−ジブロモ−２−ニトロエタノールは、硫化物の除去効果を示すが、不快な臭化水素を発生する欠点がある。２−ブロモ−２−ニトロ−１，３−プロパンジオール（以下、ＢＮＰという）は、満足する除去効果を示さない。一方、活性炭等を用いる吸着法は、設備や方法が簡単であるが、物理的な吸着作用を利用するもので、反応が遅く、処理コストが高く、また活性炭の能力が低下した場合、再生や廃棄が必要となる。
As a method for removing hydrogen sulfide or the like causing such bad odor, a method of absorbing alkanolamine (Patent Document 1) and a method of using halonitroalkanol as a method of removing sulfide (Patent Document 2) are available. Are known. Furthermore, various methods using an adsorption action have been proposed. For example, a method using an activated carbon (Patent Document 3) made of carbon microcrystals and non-graphitizable carbon or a porous carrier supporting a copper component (Patent Document 4) is known.
However, alkanolamines, depending on the compounds, can produce flammable and explosive gas mixtures, which are dangerous to handle and require special equipment for their use. Of the halonitroalkanols, 2,2-dibromo-2-nitroethanol has an effect of removing sulfides, but has a disadvantage of generating uncomfortable hydrogen bromide. 2-Bromo-2-nitro-1,3-propanediol (hereinafter referred to as BNP) does not show a satisfactory removal effect. On the other hand, the adsorption method using activated carbon and the like is simple in equipment and method, but uses a physical adsorption action, and the reaction is slow, the processing cost is high, and the activated carbon is reduced in capacity. Disposal is required.
上記のように、従来の技術では、アンモニアの除去効果が不十分であったり、効果があっても安全性や環境への配慮が欠ける面がある。本発明の目的は、安価に長期間にわたりアンモニアを除去する効果があり、かつ、環境に対して何ら悪影響のない除去方法を提供することにある。 As described above, in the prior art, it is insufficient or the effect of removing A Nmoni A, even if the effect is a surface that consideration lack of safety and environmental. An object of the present invention has the effect of removing the rear Nmoni A cotton inexpensively long term, and is to provide a no no adverse effect removal methods on the environment.
本発明を概説すれば、本発明は２−ブロモ−２−ニトロプロパン−１，３−ジイル＝ジアセテート（以下、ＢＮＰＡという）を用いることを特徴とするアンモニアの除去方法に関する。
すなわち、本発明は、
（１）アンモニアを含有する固体、液体又はガスに、ＢＮＰＡを添加することを特徴とするアンモニアの除去方法、
（２）アンモニアを含有する固体、液体又はガスが、生ゴミ、し尿又は脱水汚泥ケーキである（１）項に記載の除去方法、
（３）ＢＮＰＡを、アンモニアを含有する固体、液体又はガスに対し５０〜１０００ｐｐｍとなる量で添加する（１）又は（２）項のいずれか１項に記載の除去方法を提供することにある。
If outlined present invention, the present invention is 2-bromo-2-nitropropane-1,3-diyl diacetate (hereinafter, referred BNPA) relates to a process removing features and to luer ammonia to be used.
That is, the present invention
(1) solid containing ammonia, a liquid or gas, a method for removing the characteristic and to luer ammonia adding an BNPA,
( 2 ) The removal method according to ( 1 ) , wherein the solid, liquid or gas containing ammonia is raw garbage, human waste or dehydrated sludge cake,
( 3 ) To provide the removal method according to any one of (1) and (2 ), wherein BNPA is added in an amount of 50 to 1000 ppm with respect to a solid, liquid or gas containing ammonia. .
本発明者は、硫化物類及びアンモニア等の除去方法について、鋭意研究した結果、ＢＮＰＡを使用することにより、硫化水素、メルカプタン類及びアンモニアを効率的に除去できることを見出し本発明を完成した。 As a result of intensive studies on the method for removing sulfides and ammonia, the present inventor has found that hydrogen sulfide, mercaptans and ammonia can be efficiently removed by using BNPA, and has completed the present invention.
本発明によれば、アンモニアを大容量の設備を必要とすることなく、低コストで効率的に処理して除去することができる。また、重金属塩を使用していないことから、処理物の環境への影響を考慮することなく廃棄又は焼却することができる。 According to the present invention, without the the ammonia requires large equipment, it can be removed by treatment efficiently at a low cost. Moreover, since the heavy metal salt is not used, it can be discarded or incinerated without considering the environmental impact of the processed product.
以下、本発明を具体的に説明する。 Hereinafter, the present invention will be specifically described.
本発明のアンモニアの除去方法は、ＢＮＰＡを、アンモニアを含有する固体状物、液状物、又は気体状物に接触処理することからなる。ＢＮＰＡの使用形態は、特に制約されるものではなく、ＢＮＰＡ、それ自体を使用してもよいが、溶剤等の希釈剤を加えて液剤、粉剤、粒剤、ゲル剤、エアーゾル剤等とし、各種使用場所に適した形態とする。使用できる溶剤としては、例えば、ジエチレングリコール、ポリエチレングリコール２００、プロピレングリコール、ジプロピレングリコール、ポリプロピレングリコール等のグリコール類、エチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル、ジプロピレングリコールモノメチルエーテル等のグリコールエーテル類、Ｎ，Ｎ−ジメチルアセトアミド、Ｎ−メチル−２−ピロリジノン、２−ピロリジノン、ジメチルスルホキシド、プロピレンカーボネート、γ−ブチロラクトン、スルホラン、マレイン酸ジメチル、アジピン酸ジメチル、コハク酸ジメチル、グルタル酸ジメチル等の非プロトン性極性溶剤、その他アルコール類が挙げられる。これらの溶剤は、単品でも適用できるが、２種以上を混合して使用することもできる。これらには界面活性剤を加えることができる。更に、ＢＮＰＡは、ベントナイト、タルク、他の粘土等の鉱物質担体及び植物質担体又は界面活性剤等の微粉に担持させ粉剤又は水和剤として汚泥に混和して使用することもできる。 Method for removing the ammonia of the present invention, the BNPA, solid substance that Yusuke containing the A Nmoni A consists of the contact treatment in the liquid product, or a gaseous product. The use form of BNPA is not particularly limited, and BNPA and itself may be used, but a diluent such as a solvent is added to form a liquid, powder, granule, gel, air sol, etc. Use a form suitable for the place of use. Examples of solvents that can be used include glycols such as diethylene glycol, polyethylene glycol 200, propylene glycol, dipropylene glycol, and polypropylene glycol; glycol ethers such as ethylene glycol monomethyl ether, diethylene glycol monoethyl ether, and dipropylene glycol monomethyl ether; N , N-dimethylacetamide, N-methyl-2-pyrrolidinone, 2-pyrrolidinone, dimethyl sulfoxide, propylene carbonate, γ-butyrolactone, sulfolane, dimethyl maleate, dimethyl adipate, dimethyl succinate, dimethyl glutarate, etc. Examples include polar solvents and other alcohols. These solvents can be used alone or in combination of two or more. A surfactant can be added to these. Furthermore, BNPA can also be used by being supported on mineral powders such as bentonite, talc, other clays and fine powders such as vegetable carriers or surfactants and mixed with sludge as a powder or wettable powder.
本発明のＢＮＰＡの処理対象は、アンモニアを含有する固体、液体及びガスであり、例えば、家庭排水、産業排水、下水、し尿、生ゴミ等及びこれらの処理施設での汚泥処理中の活性汚泥、排水処理装置等の処理後に残る汚泥、濃縮泥及び脱水汚泥等が挙げられる。その他の使用場面として、アンモニアを含有する液体状の炭化水素及び気体状の炭化水素、例えば、天然ガス、原油の製造、輸送及び精製時に排出されるガス中のアンモニアの除去にも使用できる。 Processing object BNPA of the present invention, the solid that Yusuke including the ammonia, a liquid及beauty gas, for example, domestic sewage, industrial waste water, sewage, night soil, food waste, etc., and sludge treatment with these treatment facilities Activated sludge, sludge remaining after treatment of wastewater treatment equipment, concentrated sludge, dewatered sludge and the like . And other usage situation of that, liquid hydrocarbons and gaseous hydrocarbons containing ammonia, for example, natural gas, crude oil production, also the removal of ammonia in the gas discharged during transportation and purification Can be used.
本発明のＢＮＰＡの使用量は、アンモニアを含有する量により異なるがアンモニアを含有する物質に対して、５０〜１０００ｐｐｍ程度となる量であり、１００ｐｐｍ以上添加するのが好ましい。悪臭ガスの発生濃度により、その使用量を適宜増減する。余り多く添加しても消臭効果が向上しないことから経済的でない。 The amount of BNPA of the present invention is to provide substances you contain different ammoniated the amount you containing ammonia, an amount that is about 50 to 1000 ppm, preferably added over 100 ppm. The amount used is appropriately increased or decreased depending on the concentration of malodorous gas. Adding too much is not economical because the deodorizing effect does not improve.
以下、本発明を製剤例及び試験例を実施例として挙げ、更に具体的に説明するが、本発明はこれらの実施例に限定されない。 Hereinafter, the present invention will be described more specifically by way of preparation examples and test examples, but the present invention is not limited to these examples.
製剤例１
ＢＮＰＡ３０％（質量、以下同様である）及びプロピレンカーボネート７０％を混合し液剤を得た。
製剤例２
ＢＮＰＡ２０％及びコハク酸ジメチル８０％を混合し液剤を得た。
Formulation Example 1
BNPA 30% (mass, the same applies hereinafter) and propylene carbonate 70% were mixed to obtain a liquid.
Formulation Example 2
20% BNPA and 80% dimethyl succinate were mixed to obtain a liquid.
試験例１
硫化鉄と塩酸を反応させ硫化水素を発生させて、濃度５００ｐｐｍの硫化水素ガスを調製した。予めＢＮＰＡ又はＢＮＰを製剤例１に従い製剤して１ｍｌずつ入れたガラスシャーレを置いたポリ袋にこの硫化水素ガスを、１リットルずつ封じ込め、２４時間及び４８時間後に硫化水素ガス濃度を検知管を使い測定した。結果を表１に示す。
Test example 1
A hydrogen sulfide gas having a concentration of 500 ppm was prepared by reacting iron sulfide with hydrochloric acid to generate hydrogen sulfide. One liter of hydrogen sulfide gas is sealed in a plastic bag in which a glass petri dish containing 1 ml each of BNPA or BNP prepared in advance according to Formulation Example 1 is placed, and the hydrogen sulfide gas concentration is measured using a detector tube after 24 and 48 hours. It was measured. The results are shown in Table 1.
表１から、本発明のＢＮＰＡを使用すると４８時間後には全く硫化水素が除去されていることが分かる。一方、比較に使用したＢＮＰでは、十分除去されていなかった。 It can be seen from Table 1 that hydrogen sulfide is completely removed after 48 hours when the BNPA of the present invention is used. On the other hand, the BNP used for comparison was not sufficiently removed.
試験例２
市販のアンモニア水の蒸気を希釈し、濃度３５０ｐｐｍのアンモニアガスを調製した。予めＢＮＰＡ又はＢＮＰを製剤例１に従い製剤して１ｍｌずつ入れたガラスシャーレを置いたポリ袋にこのアンモニアガスを、１リットルずつ封じ込め、２４時間後のアンモニア濃度を測定した。２４時間後の測定後、ポリ袋内のガスを全て抜き、新たに濃度３５０ｐｐｍのアンモニアガスを１リットル封入した。その後、４８時間及び７２時間後にアンモニアガス濃度を検知管を使い測定した。結果を表２に示す。
Test example 2
Commercially available ammonia water vapor was diluted to prepare ammonia gas having a concentration of 350 ppm. 1 ml of this ammonia gas was sealed in a plastic bag in which a glass petri dish containing 1 ml each of BNPA or BNP prepared in advance according to Formulation Example 1 was placed, and the ammonia concentration after 24 hours was measured. After the measurement after 24 hours, all the gas in the plastic bag was exhausted, and 1 liter of ammonia gas having a concentration of 350 ppm was newly sealed. Thereafter, after 48 hours and 72 hours, the ammonia gas concentration was measured using a detector tube. The results are shown in Table 2.
表２から、本発明のＢＮＰＡは、アンモニアガスを再度封入しても、アンモニアの除去効果が優れることがわかる。一方、比較に使用したＢＮＰでは、２回目の封入では、極端に除去効果が低下していることがわかる。 From Table 2, it can be seen that the BNPA of the present invention has an excellent ammonia removal effect even when ammonia gas is sealed again. On the other hand, in the BNP used for comparison, it can be seen that the removal effect is extremely reduced in the second encapsulation.
試験例３
硫化水素ガスを蒸留水に通じ、硫化水素溶解液（５ｍｇＳ／ｌ）を調製した。この溶液をビーカーに取り、ＢＮＰＡ又はＢＮＰを製剤例１に従い製剤し５００ｐｐｍになるように添加し、撹拌子を入れ、３０分撹拌を続けた後、残存する硫化水素を測定した。測定は、株式会社共立理化学研究所製「パックテスト」を使用し、メチレンブルー比色法によって行った。結果を表３に示す。
Test example 3
Hydrogen sulfide gas was passed through distilled water to prepare a hydrogen sulfide solution (5 mgS / l). This solution was taken in a beaker, BNPA or BNP was formulated according to Formulation Example 1 and added to 500 ppm, a stir bar was added, and stirring was continued for 30 minutes, and then the remaining hydrogen sulfide was measured. The measurement was performed by a methylene blue colorimetric method using “Pack Test” manufactured by Kyoritsu Riken Corporation. The results are shown in Table 3.
表３から、ＢＮＰを添加した区と無処理区では硫化水素の残存が認められたがＢＮＰＡを添加した区では認められなかったことが分かる。 From Table 3, it can be seen that residual hydrogen sulfide was observed in the group to which BNP was added and the untreated group, but not in the group to which BNPA was added.
試験例４
市販のアンモニア水を希釈し、アンモニア溶解液（１０ｍｇＮＨ3／ｌ）を調製した。この溶液をビーカーに取り、ＢＮＰＡ又はＢＮＰを製剤例１に従い製剤し１００ｐｐｍになるように添加し、撹拌子を入れ、２０分撹拌を続けた後、残存するアンモニアを測定（１回目）した。更に、その後、各試験区に同量のアンモニア水を追加し、同様に２０分撹拌を続けた後、残存するアンモニア濃度を測定（２回目）した。測定は、株式会社共立理化学研究所製「パックテスト」を使用し、インドフエノール比色法によって行った。結果を表４に示す。
Test example 4
Commercially available aqueous ammonia was diluted to prepare an ammonia solution (10 mg NH 3 / l). This solution was taken in a beaker, BNPA or BNP was formulated according to Formulation Example 1 and added to 100 ppm, a stir bar was added, stirring was continued for 20 minutes, and the remaining ammonia was measured (first time). Furthermore, after that, the same amount of ammonia water was added to each test section, and stirring was continued for 20 minutes in the same manner, and then the remaining ammonia concentration was measured (second time). The measurement was performed by an indophenol colorimetric method using “Pack Test” manufactured by Kyoritsu Riken Corporation. The results are shown in Table 4.
表４から、本発明のＢＮＰＡは、アンモニア水を再度添加しても、アンモニアの除去効果が優れることがわかる。 Table 4 shows that the BNPA of the present invention has an excellent ammonia removal effect even when ammonia water is added again.
本発明は、家庭排水、産業排水、下水、し尿、生ゴミ等及びこれらの処理施設での汚泥、濃縮泥及び脱水汚泥等の固体状物、液体状物、気体状物に含有又は発生するアンモニアの除去に有用である。 The present invention is, domestic sewage, industrial waste water, sewage, night soil, food waste, etc., and sludge in these treatment facilities, solid matter such as concentrated sludge and dewatering sludge, liquid product, you containing or generating a gaseous product it is useful for the removal of ammonia.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02135138A (en) * | 1988-09-30 | 1990-05-24 | Union Carbide Chem & Plast Co Inc | Elimination of sulphide and the like |
| JP2003171209A (en) * | 2001-09-26 | 2003-06-17 | K I Chemical Industry Co Ltd | Industrial microbicidal antiseptic agent and microbicidal antiseptic method |
| JP2003238314A (en) * | 2002-02-13 | 2003-08-27 | K I Chemical Industry Co Ltd | Antibacterial algicide and method for antibacterial algicidal treatment |
| JP2003246703A (en) * | 2002-02-25 | 2003-09-02 | K I Chemical Industry Co Ltd | Germicidal-preservative agent and germicidal and preservative method |
| JP2003261518A (en) * | 2002-03-11 | 2003-09-19 | K I Chemical Industry Co Ltd | New dibromonitroalcohol derivative and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02135138A (en) * | 1988-09-30 | 1990-05-24 | Union Carbide Chem & Plast Co Inc | Elimination of sulphide and the like |
| JP2003171209A (en) * | 2001-09-26 | 2003-06-17 | K I Chemical Industry Co Ltd | Industrial microbicidal antiseptic agent and microbicidal antiseptic method |
| JP2003238314A (en) * | 2002-02-13 | 2003-08-27 | K I Chemical Industry Co Ltd | Antibacterial algicide and method for antibacterial algicidal treatment |
| JP2003246703A (en) * | 2002-02-25 | 2003-09-02 | K I Chemical Industry Co Ltd | Germicidal-preservative agent and germicidal and preservative method |
| JP2003261518A (en) * | 2002-03-11 | 2003-09-19 | K I Chemical Industry Co Ltd | New dibromonitroalcohol derivative and application thereof |
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