JP2013034956A5 - Sludge treatment method and treatment apparatus - Google Patents
Sludge treatment method and treatment apparatus Download PDFInfo
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本発明は、以下のとおりである。
１）（１）汚泥貯留槽内の汚泥容量、及び汚泥濃度を計測する工程、
（２）汚泥貯留槽に追加投入される汚泥の汚泥容量、及び汚泥濃度を計測する工程、
（３）上記工程（１）及び（２）から該汚泥貯留槽内の汚泥の固形物量、及び添加すべき脱水助剤量を算出する工程、
（４）前記算出された量の脱水助剤を投入機構により該汚泥貯留槽内の汚泥に一括乃至分割して投入する工程、
（５）上記工程（４）で得られた脱水助剤が混合された汚泥を脱水する工程、を含むことを特徴とする汚泥の処理方法。
２）（１）汚泥貯留槽内の汚泥容量、及び汚泥濃度を計測する工程、
（２）汚泥貯留槽に追加投入される汚泥の汚泥容量、及び汚泥濃度を計測する工程、
（３）上記工程（１）における該汚泥貯留槽内の汚泥の固形物量、及び添加すべき脱水助剤量を算出する工程、
（４）上記工程（３）で算出された量の脱水助剤を投入機構により該汚泥貯留槽内の汚泥に一括乃至分割して投入する工程、
（５）上記工程（４）で得られた脱水助剤が混合された汚泥の脱水を開始する工程、
（６）上記工程（２）における追加の汚泥の固形物量、及び添加すべき脱水助剤量を算出する工程、
（７）上記工程（６）で算出された量の脱水助剤を該追加の汚泥に連動して投入機構により該汚泥貯留槽に添加する工程、を含むことを特徴とする汚泥の処理方法。
３）（１）脱水工程に供給される汚泥の汚泥容量、及び汚泥濃度を計測する工程、
（２）上記工程（１）から該汚泥に単位時間当たりに添加すべき脱水助剤量を算出する工程、
（３）上記工程（２）で算出された量の脱水助剤を投入機構により汚泥貯留槽、汚泥流路、汚泥計量槽、及び凝集槽から選択される少なくとも１箇所の汚泥に投入する工程、
（４）上記工程（３）で得られる脱水助剤が混合された汚泥を脱水する工程、を含むことを特徴とする汚泥の処理方法。
４）汚泥流路、汚泥貯留槽、汚泥計量槽、混和槽、及び脱水機を備え、汚泥が、汚泥流路により、汚泥貯留槽、汚泥計量槽、混和槽、及び脱水機の順に移送される汚泥の処理装置において、
脱水機にて脱水すべき汚泥の汚泥濃度、及び汚泥容量を計測し、添加される脱水助剤量を求めるための汚泥濃度・汚泥容量測定手段と、
前記汚泥容量測定手段より汚泥の固形物量、及び汚泥に混合される脱水助剤量を求める算出手段と、
汚泥貯留槽、汚泥流路、汚泥計量槽、及び混和槽の少なくとも何れか１箇所以上の汚泥に、一括乃至分割して前記脱水助剤量となるように脱水助剤を投入する投入手段と、
所望により凝集剤、又は脱水助剤が投入され、汚泥と混合する混合手段と、
を有することを特徴とする汚泥の処理装置。
The present invention is as follows.
1) (1) The process of measuring the sludge capacity and sludge concentration in the sludge storage tank,
(2) a step of measuring the sludge capacity and sludge concentration of sludge added to the sludge storage tank;
(3) a step of calculating the amount of sludge solids in the sludge storage tank and the amount of dehydration aid to be added from the steps (1) and (2);
(4) A step of charging the calculated amount of dehydration aid into sludge in the sludge storage tank in a batch or divided by a charging mechanism,
(5) processing method of the sludge, which comprises a step, dehydrating sludge dewatering aid obtained was mixed in the above step (4).
2) (1) The process of measuring the sludge capacity and sludge concentration in the sludge storage tank,
(2) a step of measuring the sludge capacity and sludge concentration of sludge added to the sludge storage tank;
(3) a step of calculating a solid amount of sludge in the sludge storage tank in the step (1) and a dehydrating aid amount to be added;
(4) A step of adding the amount of dehydration aid calculated in the above step (3) to sludge in the sludge storage tank in a batch or divided by a charging mechanism,
(5) A step of starting the dewatering of the sludge mixed with the dewatering aid obtained in the above step (4),
(6) calculating the amount of additional sludge solids in step (2) above and the amount of dehydration aid to be added;
(7) processing method of the sludge, which comprises a step, to be added to the sludge storage tank in the above step (6) the amount of the dehydrating aid is calculated in conjunction with the addition of sludge at shooting mechanism.
3) (1) Measuring the sludge capacity and sludge concentration of the sludge supplied to the dehydration step,
(2) a step of calculating the amount of dehydrating aid to be added to the sludge per unit time from the step (1),
(3) A step of charging the amount of dehydration aid calculated in the above step (2) into at least one sludge selected from a sludge storage tank, a sludge flow path, a sludge metering tank, and a coagulation tank by a charging mechanism,
(4) processing method of the sludge, which comprises a step, dehydrating dehydrating aid has been mixed sludge obtained in the above step (3).
4) Equipped with sludge flow path, sludge storage tank, sludge metering tank, mixing tank, and dehydrator, and sludge is transferred through the sludge flow path in the order of sludge storage tank, sludge measuring tank, mixing tank, and dehydrator. In sludge treatment equipment,
Sludge concentration / sludge capacity measuring means for measuring the sludge concentration and sludge capacity of the sludge to be dehydrated by the dehydrator, and determining the amount of dewatering aid added;
Calculation means for obtaining the amount of solid matter of sludge and the amount of dewatering aid mixed with sludge from the sludge capacity measuring means,
An input means for supplying a dehydration aid to the sludge in a sludge storage tank, a sludge flow path, a sludge metering tank, and a mixing tank at least one of them in a lump or divided into the amount of the dehydration aid;
A mixing means for adding a flocculant or a dehydrating aid if desired and mixing with sludge;
An apparatus for treating sludge.
以下、本発明を詳細に説明する。
本発明の汚泥の処理方法１）（以下、本方法１）ともいう）は、少なくとも以下の工程（１）〜（５）を含む。
（１）汚泥貯留槽内の汚泥容量、及び汚泥濃度を計測する工程、
（２）汚泥貯留槽に追加投入される汚泥の汚泥容量、及び汚泥濃度を計測する工程、
（３）上記工程（１）及び（２）から該汚泥貯留槽内の汚泥の固形物量、及び添加すべき脱水助剤量を算出する工程、
（４）前記算出された量の脱水助剤を投入機構により該汚泥貯留槽内の汚泥に一括乃至分割して投入する工程、
（５）上記工程（４）で得られた脱水助剤が混合された汚泥を脱水する工程、を含むことを特徴とする汚泥の処理方法。
上記工程（１）は、汚泥容量、及び汚泥濃度を計測することで、汚泥貯留槽内の汚泥の固形物量を求めるものである。本発明において、固形物量とは、固形物の質量を意味する。同様に該工程（２）では、該追加投入される汚泥の固形物量を求める。そして、該工程（３）では、該工程（１）及び（２）から汚泥貯留槽内に存在する全汚泥の固形物量を求めるとともに該固形物量に基づいて添加すべき脱水助剤量を算出する。該工程（４）では、該脱水助剤量を汚泥貯留槽内の汚泥に投入機構により一括乃至分割して投入し、該工程（５）では、該脱水助剤が混合された汚泥を脱水する。
Hereinafter, the present invention will be described in detail.
The sludge treatment method 1) of the present invention (hereinafter also referred to as the present method 1) includes at least the following steps (1) to (5).
(1) Measuring the sludge capacity in the sludge storage tank and the sludge concentration,
(2) a step of measuring the sludge capacity and sludge concentration of sludge added to the sludge storage tank;
(3) a step of calculating the amount of sludge solids in the sludge storage tank and the amount of dehydration aid to be added from the steps (1) and (2);
(4) A step of charging the calculated amount of dehydration aid into sludge in the sludge storage tank in a batch or divided by a charging mechanism,
(5) processing method of the sludge, which comprises a step, dehydrating sludge dewatering aid obtained was mixed in the above step (4).
In the step (1), the amount of sludge in the sludge storage tank is determined by measuring the sludge capacity and the sludge concentration. In the present invention, the amount of solid means the mass of the solid. Similarly, in the step (2), the amount of solid matter of the added sludge is obtained. And in this process (3), while calculating | requiring the solid content of the total sludge which exists in a sludge storage tank from this process (1) and (2), the amount of dehydration adjuvant which should be added is calculated based on this solid content. . In the step (4), the amount of the dewatering aid is added to the sludge in the sludge storage tank in a batch or divided by a charging mechanism, and in the step (5), the sludge mixed with the dewatering aid is dehydrated. .
本発明の汚泥の処理方法２）（以下、本方法２）ともいう）は、少なくとも以下の工程（１）〜（７）を含む。
（１）汚泥貯留槽内の汚泥容量、及び汚泥濃度を計測する工程、
（２）汚泥貯留槽に追加投入される汚泥の汚泥容量、及び汚泥濃度を計測する工程、
（３）上記工程（１）における該汚泥貯留槽内の汚泥の固形物量、及び添加すべき脱水助剤量を算出する工程、
（４）上記工程（３）で算出された量の脱水助剤を投入機構により該汚泥貯留槽内の汚泥に一括乃至分割して投入する工程、
（５）上記工程（４）で得られた脱水助剤が混合された汚泥の脱水を開始する工程、
（６）上記工程（２）における追加の汚泥の固形物量、及び添加すべき脱水助剤量を算出する工程、
（７）上記工程（６）で算出された量の脱水助剤を該追加の汚泥に連動して投入機構により該汚泥貯留槽に添加する工程、を含むことを特徴とする汚泥の処理方法。
本方法２）が本方法１）と相違する点は、本方法２）では、汚泥貯留槽に追加される汚泥の固形物量に対応した脱水助剤量と先に脱水される汚泥の脱水助剤量を別個に算出し、各々の汚泥に相当する量の脱水助剤を別個に各々の汚泥に投入する点である。本方法２）においても、本方法１）と同様に該別個の脱水助剤は、何れも汚泥貯留槽内の汚泥に投入される。
本方法２）は、先の汚泥と汚泥濃度等が異なった汚泥を処理する場合に有効であり、本方法１）は、汚泥濃度等が一定の場合に有効である。
本方法１）及び２）において、汚泥貯留槽で脱水助剤と混合された汚泥は、脱水工程に移送されるが、脱水工程の前段で任意の処理が施されてもよい。後述の本発明３）についても上記と同様である。
The sludge treatment method 2) of the present invention (hereinafter also referred to as the present method 2) includes at least the following steps (1) to (7).
(1) Measuring the sludge capacity in the sludge storage tank and the sludge concentration,
(2) a step of measuring the sludge capacity and sludge concentration of sludge added to the sludge storage tank;
(3) a step of calculating a solid amount of sludge in the sludge storage tank in the step (1) and a dehydrating aid amount to be added;
(4) A step of adding the amount of dehydration aid calculated in the above step (3) to sludge in the sludge storage tank in a batch or divided by a charging mechanism,
(5) A step of starting the dewatering of the sludge mixed with the dewatering aid obtained in the above step (4),
(6) calculating the amount of additional sludge solids in step (2) above and the amount of dehydration aid to be added;
(7) processing method of the sludge, which comprises a step, to be added to the sludge storage tank in the above step (6) the amount of the dehydrating aid is calculated in conjunction with the addition of sludge at shooting mechanism.
The difference between this method 2) and this method 1) is that in this method 2), the amount of dewatering aid corresponding to the amount of sludge solids added to the sludge storage tank and the sludge dewatering aid previously dehydrated. The amount is calculated separately, and the amount of dehydration aid corresponding to each sludge is separately added to each sludge. In the present method 2), as in the present method 1), the separate dehydration aids are all put into the sludge in the sludge storage tank.
This method 2) is effective when treating sludge having a sludge concentration different from the previous sludge, and this method 1) is effective when the sludge concentration etc. is constant.
In the present methods 1) and 2), the sludge mixed with the dewatering aid in the sludge storage tank is transferred to the dewatering step, but may be subjected to any treatment before the dewatering step. The same applies to the present invention 3) described later.
本発明の汚泥の処理方法３）（以下、本方法３）ともいう）は、少なくとも以下の工程（１）〜（４）を含む。
（１）脱水工程に供給される汚泥の汚泥容量、及び汚泥濃度を計測する工程、
（２）上記工程（１）から該汚泥に単位時間当たりに添加すべき脱水助剤量を算出する工程、
（３）上記工程（２）で算出された量の脱水助剤を投入機構により汚泥貯留槽、汚泥流路、汚泥計量槽、及び凝集槽から選択される少なくとも１箇所の汚泥に投入する工程、
（４）上記工程（３）で得られる脱水助剤が混合された汚泥を脱水する工程、を含むことを特徴とする汚泥の処理方法。
本方法３）において、工程（１）では、脱水工程に供給される固形物量が算出され、工程（２）では、この固形物量に応じた、該汚泥に単位時間当たりに添加すべき脱水助剤量（以下、脱水助剤単位量ともいう）が算出され、工程（３）では、該脱水助剤単位量に時間を乗じて得た値に相当する量の脱水助剤が、該汚泥に添加される脱水助剤の総量となるように、汚泥の処理経路、即ち、汚泥貯留槽、汚泥流路、汚泥計量槽、及び凝集槽から選択される少なくとも１箇所の汚泥に投入機構により投入され、工程（４）では、該脱水助剤の総量が添加された汚泥が脱水処理される。
上記脱水助剤単位量の単位としての時間は、任意に設定できる。本方法３）は、汚泥性状が時間的に変動する場合、例えば、種々の汚泥自体への処理を介在させた場合等に好適であり、最適な脱水助剤量を汚泥に添加することができる。
The sludge treatment method 3) of the present invention (hereinafter also referred to as the present method 3) includes at least the following steps (1) to (4).
(1) a step of measuring the sludge capacity and sludge concentration of sludge supplied to the dehydration step;
(2) a step of calculating the amount of dehydrating aid to be added to the sludge per unit time from the step (1),
(3) A step of charging the amount of dehydration aid calculated in the above step (2) into at least one sludge selected from a sludge storage tank, a sludge flow path, a sludge metering tank, and a coagulation tank by a charging mechanism,
(4) processing method of the sludge, which comprises a step, dehydrating dehydrating aid has been mixed sludge obtained in the above step (3).
In the present method 3), in step (1), the amount of solids supplied to the dehydration step is calculated, and in step (2), the dehydration aid to be added to the sludge per unit time according to the amount of solids. In step (3), an amount of dehydration aid corresponding to the value obtained by multiplying the dehydration aid unit amount by time is added to the sludge. The sludge treatment path, that is, the sludge storage tank, the sludge flow path, the sludge metering tank, and at least one sludge selected from the coagulation tank is charged by the input mechanism so as to be the total amount of the dewatering aid to be In step (4), the sludge to which the total amount of the dehydrating aid has been added is dehydrated.
The time as a unit of the dehydration aid unit amount can be arbitrarily set. This method 3) is suitable when the sludge properties fluctuate with time, for example, when various sludge treatments are interposed, and an optimal amount of dewatering aid can be added to the sludge. .
Claims (7)
（２）汚泥貯留槽に追加投入される汚泥の汚泥容量、及び汚泥濃度を計測する工程、
（３）上記工程（１）及び（２）から該汚泥貯留槽内の汚泥の固形物量、及び添加すべき脱水助剤量を算出する工程、
（４）前記算出された量の脱水助剤を投入機構により該汚泥貯留槽内の汚泥に一括乃至分割して投入する工程、
（５）上記工程（４）で得られた脱水助剤が混合された汚泥を脱水する工程、を含むことを特徴とする汚泥の処理方法。 (1) Measuring the sludge capacity in the sludge storage tank and the sludge concentration,
(2) a step of measuring the sludge capacity and sludge concentration of sludge added to the sludge storage tank;
(3) a step of calculating the amount of sludge solids in the sludge storage tank and the amount of dehydration aid to be added from the steps (1) and (2);
(4) A step of charging the calculated amount of dehydration aid into sludge in the sludge storage tank in a batch or divided by a charging mechanism,
(5) processing method of the sludge, which comprises a step, dehydrating sludge dewatering aid obtained was mixed in the above step (4).
（２）汚泥貯留槽に追加投入される汚泥の汚泥容量、及び汚泥濃度を計測する工程、
（３）上記工程（１）における該汚泥貯留槽内の汚泥の固形物量、及び添加すべき脱水助剤量を算出する工程、
（４）上記工程（３）で算出された量の脱水助剤を投入機構により該汚泥貯留槽内の汚泥に一括乃至分割して投入する工程、
（５）上記工程（４）で得られた脱水助剤が混合された汚泥の脱水を開始する工程、
（６）上記工程（２）における追加の汚泥の固形物量、及び添加すべき脱水助剤量を算出する工程、
（７）上記工程（６）で算出された量の脱水助剤を該追加の汚泥に連動して投入機構により該汚泥貯留槽に添加する工程、を含むことを特徴とする汚泥の処理方法。 (1) Measuring the sludge capacity in the sludge storage tank and the sludge concentration,
(2) a step of measuring the sludge capacity and sludge concentration of sludge added to the sludge storage tank;
(3) a step of calculating a solid amount of sludge in the sludge storage tank in the step (1) and a dehydrating aid amount to be added;
(4) A step of adding the amount of dehydration aid calculated in the above step (3) to sludge in the sludge storage tank in a batch or divided by a charging mechanism,
(5) A step of starting the dewatering of the sludge mixed with the dewatering aid obtained in the above step (4),
(6) calculating the amount of additional sludge solids in step (2) above and the amount of dehydration aid to be added;
(7) processing method of the sludge, which comprises a step, to be added to the sludge storage tank in the above step (6) the amount of the dehydrating aid is calculated in conjunction with the addition of sludge at shooting mechanism.
（２）上記工程（１）から該汚泥に単位時間当たりに添加すべき脱水助剤量を算出する工程、
（３）上記工程（２）で算出された量の脱水助剤を投入機構により汚泥貯留槽、汚泥流路、汚泥計量槽、及び凝集槽から選択される少なくとも１箇所の汚泥に投入する工程、
（４）上記工程（３）で得られる脱水助剤が混合された汚泥を脱水する工程、を含むことを特徴とする汚泥の処理方法。 (1) a step of measuring the sludge capacity and sludge concentration of sludge supplied to the dehydration step;
(2) a step of calculating the amount of dehydrating aid to be added to the sludge per unit time from the step (1),
(3) A step of charging the amount of dehydration aid calculated in the above step (2) into at least one sludge selected from a sludge storage tank, a sludge flow path, a sludge metering tank, and a coagulation tank by a charging mechanism,
(4) processing method of the sludge, which comprises a step, dehydrating dehydrating aid has been mixed sludge obtained in the above step (3).
脱水機にて脱水すべき汚泥の汚泥濃度、及び汚泥容量を計測し、添加される脱水助剤量を求めるための汚泥濃度・汚泥容量測定手段と、 Sludge concentration / sludge capacity measuring means for measuring the sludge concentration and sludge capacity of the sludge to be dehydrated by the dehydrator, and determining the amount of dewatering aid added;
前記汚泥容量測定手段より汚泥の固形物量、及び汚泥に混合される脱水助剤量を求める算出手段と、 Calculation means for obtaining the amount of solid matter of sludge and the amount of dewatering aid mixed with sludge from the sludge capacity measuring means,
汚泥貯留槽、汚泥流路、汚泥計量槽、及び混和槽の少なくとも何れか１箇所以上の汚泥に、一括乃至分割して前記脱水助剤量となるように脱水助剤を投入する投入手段と、 An input means for supplying a dehydration aid to the sludge in a sludge storage tank, a sludge flow path, a sludge metering tank, and a mixing tank at least one of them in a lump or divided into the amount of the dehydration aid;
所望により凝集剤、又は脱水助剤が投入され、汚泥と混合する混合手段と、 A mixing means for adding a flocculant or a dehydrating aid if desired and mixing with sludge;
を有することを特徴とする汚泥の処理装置。An apparatus for treating sludge.
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| JP7165349B2 (en) | 2018-07-31 | 2022-11-04 | 株式会社タスク東海 | Sludge drying method |
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| JP7044538B2 (en) * | 2017-12-20 | 2022-03-30 | メタウォーター株式会社 | Addition method, addition equipment and sludge treatment system |
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| JPS5334359A (en) * | 1976-09-10 | 1978-03-30 | Kubota Ltd | Sludge dewatering process and device |
| JPS6023000A (en) * | 1983-07-18 | 1985-02-05 | Ebara Infilco Co Ltd | Process for controlling amount of organic high molecular flocculant to be added |
| JPS61138600A (en) * | 1984-12-11 | 1986-06-26 | Kubota Ltd | Control of amount of added chemical in dehydration treatment of sludge |
| JPS62147343A (en) * | 1985-12-20 | 1987-07-01 | Kobe Steel Ltd | Apparatus for measuring concentration of sludge |
| JPH0523280Y2 (en) * | 1988-01-11 | 1993-06-15 | ||
| JPH0368500A (en) * | 1989-08-09 | 1991-03-25 | Ebara Infilco Co Ltd | Method for controlling rate of addition of polymer flocculant |
| JP4817431B2 (en) * | 2006-04-18 | 2011-11-16 | 水ｉｎｇ株式会社 | Sludge dewatering aid and sludge dewatering method and apparatus using the same |
| JP5176625B2 (en) * | 2008-03-19 | 2013-04-03 | 株式会社石垣 | Constant moisture content control method and moisture content constant control device in screw press |
| JP2009255000A (en) * | 2008-04-18 | 2009-11-05 | Ebara Engineering Service Co Ltd | Apparatus for supplying staple fiber |
| JP4966258B2 (en) * | 2008-06-19 | 2012-07-04 | 水ｉｎｇ株式会社 | Method and apparatus for dewatering organic sludge |
| JP5305878B2 (en) * | 2008-12-11 | 2013-10-02 | クボタ環境サ−ビス株式会社 | Fiber concentration measuring device, fiber concentration adjusting device, dewatering equipment and dewatering method in sludge |
| JP5658107B2 (en) * | 2010-08-31 | 2015-01-21 | 水ｉｎｇ株式会社 | Sludge dewatering aid and sludge dewatering method and apparatus |
| JP5697510B2 (en) * | 2011-03-29 | 2015-04-08 | クボタ環境サ−ビス株式会社 | Sludge management system |
| JP5855845B2 (en) * | 2011-05-12 | 2016-02-09 | 水ｉｎｇ株式会社 | Sludge treatment agent, sludge treatment method and sludge treatment apparatus using the same |
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| JP7165349B2 (en) | 2018-07-31 | 2022-11-04 | 株式会社タスク東海 | Sludge drying method |
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