ＮＰＯ Corporation play ' face familiar living environment problem and propose environment making a safe and healthy life.

"Any person in vain waste dumped is not" has been in the article 16 of the waste scavenging. And waste is thrown away and needed. Pavement Edition cutting polluted water is has continued is dumping in vain waters such as roadside ditches and sewage pipes, as liquefied wastes generated from the business.

Recently various environmental issues attracted attention and regulation had become severe. We believe that toxic wastewater with causes small amounts have been overlooked environment has been improving gradually, as a result still pollution such as water is not being improved. Your understanding about the dumping of polluted water occurring asphalt pavement is calling from a previous cut construction everyone towards the ご いただき 理解 投棄 汚濁 水 する 発生 切断 工事 アスファルト 舗装 道路 いる 呼びかけて 以前 から の で の について 、 皆様 方 に 守る 子供 達 環境 保護 と 未来 の を 為 に protecting children in environmental protection and the future for the Please help us.

Current status of polluted water dumping occurred in asphalt pavement construction of road cutting

Is the version of cutting construction. You disconnected while throwing water on cutting edge by friction heat burning prevention and prevention of dust. Polluted water caused the suction will is collection simultaneously cutting work and...

Most of them I almost is invisible being dumped waters road gutters, etc. of is present.

Various substances are contained in the polluted water hanging continues are washed like this every day.

• Summarized effluent standards cutting polluted water samples, analysis of results and below [table 1].

PH, SS, mineral oil and COD greatly surpasses the wastewater standards from the analysis results. However, for 1 point per displacement less than 50 M3, has been treated as a non-regulated.

-As well as from the polluted water, 7 types of polycyclic aromatic hydrocarbons (PAH) in carcinogenicity and of famous analysis is summarized in [table 2] deeds.

Analysis of the results of six types of PAH was containing in polluted water. PAH is inferred as the reason for its occurrence the large underwater cutting pollution because the by-products of fire Lord cause momentary friction heat during cutting.
Benzo but PAH in[a]Pyrene is the IARC （ international cancer research institutions ） in has been classified in Group 1 carcinogen is found against the position equivalent to the asbestos. Also has listed hazardous air pollutant priority initiatives substances, even at low concentrations the health effects of raw by long-term intake and fear caused by substances. In vicious act of dumping polluted water containing harmful chemicals like this to water very, must protect from spills as soon as possible.

Proposal of the APCR method

Consider the conjunction with the cutting work to prevent cutting polluted water runoff, aspiration, collection and processing by proximity to make is the most desirable. The APCR method proposed is without dumping dirty water was sucking on the vacuum suction machines waters road gutters, etc. method considering the re-use of treated water conducting continuous treatment in the local system can properly handle recycling.

As the election criteria for processing equipment

Recruited more than solid-liquid separating unit (APC unit) as a condition.

Cutting pollution water suction collection is solid-liquid are separated in the APC unit and separate the solids and water filtration.

　Polluted water will be left on the road the following photo 1, road cutting at. Neighborhood residents and environmental impacts on dried and scattering worry is re-computed polluted water for cutting surface. Most aberrant polluted water on the road surface APCR method uses cleaning suction equipment, could not be sucked in cutting machines ever I almost recovered, goal is to a safe construction. (Photo 2) we believe in proper recall of polluted water leads to reducing impact to the environment and protect the health of nearby residents.

APC's polluted water liposuction recovery(Solid-liquid separation)Processed at the unit, separate the solids and water filtration.

Small cutting construction has proposed pollution water recovery vehicle-vehicle cleaning suction unit, etc.

Polluted water with suction, wash cutting surface and are collected in the tank.

This time, we covered how to disconnect is a wet-cutting with water (vacuum Disconnect method), dry cutting does not use water on the other. High temperature cutting not cooling water, dust and splashed, being sucked into the human body likely thing and if the dry cutting method because the benzo[a]PAH, pyrene emissions increases compared to wet the human and environmental impacts are concerned. And regulation is attracted from asphalt undermined by Spike tire dust changes to potent carcinogens (of Nitro) by ultraviolet rays and nitrogen dioxide in the atmosphere is the prohibition of the use of studded tires 1 examples of asphalt dust problem said. We believe by dry cutting method is undesirable, consider the occurrence of hazardous substances and the danger of dust dispersion from these backgrounds.

Seems low could flow at room temperature components of asphalt paved road that is, in cases, cleaners or volatile oil spill caused by low impact on the environment, is more secure. Asphalt pavement is a traffic injury and environmental beautification impact is significant and must be of modern society is. Fact is, however, incorrect handling or handling and disposal varies very dangerous substances it. PAH asphalt components in the many ring seems to be high and greater risk, but usually in the splash or spill dust must less, artificially on impact in environmental risk is considered extremely low.

Playing House is pavement Edition cutting polluted water Runaway Prevention and safe recovery, has suggested the proper treatment.

Importance of pavement Edition cutting pollution water treatment and management

Water pollution control lawSo,Responsibilities of the nationalAnd

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Also,Research promotion, etc.So,

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Present situation and harmfulness of paving slab （ asphalt ） cutting polluted water

Most of the pavement Edition cutting polluted water is a high concentration of high concentration a lasting influence significantly aquatic environment by draining it.

　1.Suspended matter (SS)Regarding the issue becomes chiefly aquatic organisms growth.
In General, a 25 mg／L less turbidity has been below 50 mg／L can maintain a normal production activity, can prevent the damage of the mortality of fishes. Influence of drainage criteria considering the dilution effect and water discharge of the original, and 200 mg／L pavement Edition cutting polluted water turbidity 100000-450000 mg／L is a pavement Edition cutting polluted water that continue to affect waters is immense.

　2.Hydrogen ion concentration (pH)The effluent standards is 6. 5-8. Is 5.
It's 8 as raw water. Has been and is bactericidal power decreases by more than 5, and departing from this range give stimulus eyes.
Pavement Edition cutting polluted water hydrogen ion concentration is 9-10, lasting impact waters.

　3.Normal hexane extraction material such as oil （ ）The oil system oil by fish odor sources, water quality regulations has been attracted for the prevention of damage from conventional. Also, could cause damage to aquatic creatures and obstacles of the baths for the oil environment conservation were considered. To fish and petroleum based oil concentration ringtones ringtones from the Bulletin of the science and Technology Agency relation odor odor limit is 0. 01 To 0. is 1 mg／L. Drainage criteria considering the dilution effects and discharge of the original river water, and mineral oil (oil-based) 5 mg／L.
　Pavement Edition cutting pollution water minerals 2200-3100 mg／L oil is and has continue to affect significantly in water environment. Pavement Edition cutting pollution water mineral oil is also a benzo[a]Adverse effects continue to affect ecosystems carcinogenic chemicals including pyrene has been found, including those inferred tremendous. Outsourcers are causing water pollution is a major infrastructure development companies and administrative, mostly hanging has swept pavement Edition cutting polluted water is unnecessary as waters. These acts are being done intentionally. State or country that is road Manager for outsourcers, to prevent the adverse effects on the ecosystem including the person that needs regulation established as soon as possible is.

※ Abrasive cutting method in pavement Edition cut and may risk causing human disasters such as emphysema, because most of the paving slab polished fine particles of less than 10 microns, deposited lung bubble belt by suction.　It seems necessary to do the prevention and recovery of proven safety supervision and guidance.
　　　

Ensuring the safety and effectiveness of the solid-liquid separation of asphalt pavement Edition cutting polluted water

Believe that one of the means of a valid high-performance solid-liquid separation process for recovery of asphalt pavement Edition cutting pollution water of carcinogenic chemicals and prevents the spread into the environment. Solid-liquid separation process cutting polluted water for further analysis, and containing large amounts of cancer-causing chemicals in cutting pollution Suwon water that apparently collected from another location, a few months after we did the solids and water filtration of chemical substances. Carcinogenic chemicals are detected in water filtration results analysis of drainage criteria values revealed large amounts of solids in the carcinogenic chemical residue, making within.

Problem no is recycled processed solid-liquid separation filtration water environment during recycling of solid difficult, especiallyConsidered high risk have harmful as the characteristics of persistent organic pollutants, and are easy to bioaccumulation refractory biodegradable (food chain) things when mixed with sand and significantly on the effects to human and ecosystem.

Solid-liquid separation after moving to harmful chemical substances, containing solids I think desirable recycled on the detoxification of the improvement of high-temperature drying, etc.

Although the standards stipulated internationally including benzo [a] pyrene in highly carcinogenic chemicals are particularly must understand things is, is specified in the priority efforts of substances of hazardous air pollutants in this country, legal standards are not provided, no strict regulations or is the status quo.