地下水硝酸鹽污染阻斷與修復(fù)技術(shù)及裝備研究年度進(jìn)展報告

姜永海

摘 要：目前，各項(xiàng)任務(wù)研究進(jìn)展順利，課題目標(biāo)設(shè)定基本合理，課題組各項(xiàng)研究按照任務(wù)書計劃安排有序?qū)嵤糠盅芯抗ぷ饕呀?jīng)提前開展。 在技術(shù)示范場地選擇方面，課題組確定了北京市順義區(qū)趙全營鎮(zhèn)白廟村南的一處垃圾填埋場和浙江省海鹽縣西塘橋鎮(zhèn)海塘村一處養(yǎng)殖基地作為該課題的2個技術(shù)示范場地。目前已經(jīng)開展了基礎(chǔ)信息收集、場地水文地質(zhì)狀況勘查、地下水監(jiān)測井建設(shè)、地下水水質(zhì)監(jiān)測，完成了微水試驗(yàn)和滲水試驗(yàn)，獲得了水文地質(zhì)參數(shù)。這些信息和數(shù)據(jù)為課題組開展實(shí)驗(yàn)室研究和現(xiàn)場技術(shù)示范工程設(shè)計提供了基礎(chǔ)和支撐。在試驗(yàn)研究方面，以示范場地為研究背景，課題組開展了大量的實(shí)驗(yàn)室研究，為開展實(shí)際場地地下水硝酸鹽污染修復(fù)技術(shù)示范奠定理論基礎(chǔ)。主要包括地下水氮污染修復(fù)材料和地下水氮污染修復(fù)技術(shù)開發(fā)。在地下水氮污染修復(fù)材料方面，課題組研究開發(fā)了3種修復(fù)材料，包括一種硝化細(xì)菌碳源材料、一種氧化劑緩釋材料釋放材料和一種生物-化學(xué)聯(lián)合修復(fù)材料。在地下水修復(fù)技術(shù)方面，課題組創(chuàng)新性提出了兩種地下水修復(fù)技術(shù)工藝，一種是基于北方埋深較深的地下水污染修復(fù)的非連續(xù)滲透反應(yīng)強(qiáng)地下水污染原位處理技術(shù)，該技術(shù)在傳統(tǒng)滲透反應(yīng)墻基礎(chǔ)上，針對北方地下水埋深較深的實(shí)際情況，提出的以注射井陣形成的地下水修復(fù)系統(tǒng)，該技術(shù)具有施工難度小，建設(shè)成本低的優(yōu)點(diǎn)，特別適用于處理較深層地下水污染問題；多級準(zhǔn)原位地下水修復(fù)系統(tǒng)，是該課題研發(fā)的一種新型地下水技術(shù)，該技術(shù)集濕地處理技術(shù)、滲透反應(yīng)墻技術(shù)和地下水井灌技術(shù)為一體的地下水修復(fù)系統(tǒng)，其具有建設(shè)與運(yùn)行成本低、易施工、對地下水環(huán)境的擾動小、靈活性強(qiáng)、適應(yīng)性強(qiáng)的優(yōu)點(diǎn)。在成果產(chǎn)出方面，目前，課題組申請專利5項(xiàng)，獲得授權(quán)專利兩項(xiàng)，提出創(chuàng)新技術(shù)兩項(xiàng)，投稿學(xué)術(shù)論文6篇，其中SCI論文3篇。

關(guān)鍵詞：地下水 硝酸鹽 修復(fù)材料 修復(fù)技術(shù)及裝備

Abstract： Currently， the progress of study goes well，the target is basic reasonable， the job of research is carried out smoothly according to the plan， parts of study have already developed in advance. Two typical demonstrate place were chosen， one is MSW landfill which is located in Shunyi County in Beijing， the other one is breeding base in Haiyan County in Zhejiang province. At the two research bases， information collecting， hydrogeological investigation， monitoring wells building， water quality monitoring， slug and infiltration testing， all of these already have been finished， and hydrogeological parameter have been achieved. These results can be used in the design of engineering demonstration. On the basis of a great deal of laboratory data， theoretical basis are built about the remediation technology of the pollution of nitrate in groundwater， which was based of the research background of engineering demonstration field. Three kinds of remediation materials developed， including activated carbon material， slow-releasing material of oxidation and biochemical integrated material. Two innovative scientific remediation technology are studied. One is unfilled PRB in situ remediation technology of groundwater pollution， which is proposed basing deeper groundwater pollution in in the north. The remediation technology has advantages of low investment， simple process flow and low cost. The multi semi-in situ remediation of groundwater system is a new groundwater remediation technology which is researched and developed through our research. The system integrated the Wetland treatment technology， Permeable reactive barriers technology and groundwater well irrigation technology as a whole. The advantages of this system are lower cost of construction and operation， easy construction， small disturbance to the groundwater environment， strong flexibility and adaptability. In terms of achievements， there have been five applied patents， two received patents. six papers， which including three SCI， and two innovative technologies in the research group.

Key Words： Groundwater； Nitrate； Remediation meterial； Remediation technology and equipment

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