The development of environmental rehabilitation techniques of lakes and rivers by purification system based on substances circulation

基于物质循环净化系统的湖泊河流环境修复技术研究进展

• 批准号: 12794003
• 负责人: MATSUMOTO Satoshi
• 金额: $ 6.46万
• 依托单位: Akita Prefectural University (2001-2002)The University of Tokyo (2000)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for University and Society Collaboration
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12794003/
• 关键词: eutrophication; water pollution; filtration material for nitrogen elimination; filtration material for phosphorus elimination; microhabitats; treatment for a large amount of foul water; ceramic filtration materials; charcoal granular; リン除去濾剤; 凝集沈

In the former of the study period using the purification water equipment by the natural circulation system which is composed by only natural materials, the development of high performance filtration material was tried to attain the discharge concentration of less than 0.5mg/l for nitrogen and less than 0.01mg/l for phosphorus. For the nitrogen, the ceramic filtration material obtained by heat-treated mixtures of charcoal granular and zeolite powder succeeded to reduce the nitrogen discharge concentration to less than 0.5mg/l in regular working time. However, for the phosphorus, the filtration materials mainly composed of calcium silicate could not attain the limitation. On the other hand, at the pond where is suffered from the heavy pollution with foul water it was cleared that the pollution originates from the nutrients decomposed gradually from a large quantity of the mud sediments (sludge). For the effective collection of the pond sludge, calcium silicate materials was newly developed as a cohesive and safety ones instead of usual poly aluminum chloride (PAC), and we demonstrated that this method is effective for the collection of pond sludge as a dehydrated cake. In the later of the study period, studies were conducted to heavily polluted rivers at urban area. In these studies, a filtration material was developed to eliminate only BOD and SS in the short time treatment for a large amount of foul water. As results, we succeeded to produce a ceramic small ball having charcoal granular treated with chitosan built-in and demonstrated that this ceramic material coated with clay can display in short time and for a large amount of foul water the discharge water with very high transparency.

在研究前期，利用纯天然材料组成的自然循环系统净化水设备，努力开发高性能滤料，使氮的排放浓度低于0.5 mg/L，磷的排放浓度低于0.01 mg/L。对于氮气，由炭粒和沸石粉混合热处理而成的陶瓷过滤材料在正常工作时间内成功地将氮气排放浓度降至0.5 mg/L以下。然而，对于磷，以硅酸钙为主的过滤材料达不到极限。另一方面，在污水污染严重的池塘，可以清楚地看到，污染是由大量泥沙(污泥)逐渐分解的营养物质造成的。为了有效地收集池塘污泥，硅酸钙材料是一种新型的粘结、安全的材料，取代了通常的聚合氯化铝(PAC)，我们证明了这种方法对于作为脱水蛋糕的池塘污泥的收集是有效的。在研究的后期，对城区重污染河流进行了研究。在这些研究中，开发了一种过滤材料，可以在短时间内仅去除大量污水中的BOD和SS。结果表明，用壳聚糖包覆后的炭粒陶瓷小球，可以在短时间内显示废水，对大量污水具有很高的透明度。

项目成果

Satoshi MATSUMOTO: "Purification of hydrosphere environments by the Shimanto-gawa method and toward for the newly social creation designed by substances circulation (in Japanese)"Blobal Environmental research. 8. 97-104 (2003)

松本聪：“通过四万十川法净化水圈环境，并通过物质循环设计新的社会创造（日语）”全球环境研究。

Takashi Kunito: "Characterization of copper-resistant bacterial community in rhizosphere of highly copper-contaminated soil"Eur. J. Soil Biol.. 37. 95-102 (2001)

Takashi Kunito：“高度铜污染土壤根际耐铜细菌群落的特征”Eur。

松本 聰: "四万十川方式による水圏環境の浄化と新たなる物質循環型社会の創造に向けて"地球環境. 8. 97-104 (2003)

松本聪：“利用四万十川法净化水生环境并创建新的物质循环型社会”《全球环境》。

Kazutoshi Saeki: "Relationships between Bacterial Tolerance Levels and Forms of Copper and Zinc in Soils"J. Environ. Qual.. 31. 1570-1575 (2002)

Kazutoshi Saeki：“细菌耐受水平与土壤中铜和锌形态的关系”J。

Takashi Kunito: "Copper and Zinc fractions affecting microorganisms in long-term sludge-amended soils"Bioresource Technology. 79. 135-146 (2001)

Takashi Kunito：“影响长期污泥改良土壤中微生物的铜和锌组分”生物资源技术。