Air asam tambang (AAT) adalah dampak1lingkungan kegiatan penambangan batubara yang perlu dilakukan pengolahan agar dapat memenuhi standar baku mutu1air yang diatur Kepmen.1LH No.1113 Tahun12003 dan Pergub Sumsel No. 81Tahun 2012. Tujuan penelitian ini ialah1menganalisis pengaruh Purun Tikus, perubahan1pH serta kadar logam Fe dan Mn dalam penetralan AAT. Pengolahan AAT dilakukan secara pasif dengan sistem lahan basah buatan menggunakan Purun Tikus yang mengandung logam alkali, alkali tanah, selulosa, senyawa fenolik dan mikroba rhizosfera sehingga dapat menetralkan AAT. Purun Tikus terdapat di rawa pasang surut sulfat masam dan untuk memperolehnya tidak membutuhkan biaya dan proses yang sulit sehingga mudah untuk dimanfaatkan sebagai penetral AAT. Pengolahan AAT ini dilakukan1selama 20 hari pada skala1laboratorium menggunakan dua kolam percobaan berukuran 60 x 30 x 27 cm, yaitu kolam percobaan A yang mengunakan Purun Tikus dengan media tanah dan pupuk organik serta kolam percobaan B yang menggunakan Purun Tikus dengan media tanah tanpa pupuk organik. Hasil pengolahan AAT pada penelitian ini yaitu terjadi peningkatan pH1dan penurunan kadar logam1Fe dan Mn AAT. Peningkatan1pH pada kolam percobaan A dan1B masing-masing dari 3,68 menjadi 7,51 dan 6,22 dengan persentase sebesar 50,99% dan 40,83%. Penurunan kadar logam Fe kolam percobaan A dan B masing-masing dari10,21 mg/l menjadi 0,012 mg/l dan 0,034 mg/l dengan persentase sebesar 94,28% dan 83,80%. Penurunan kadar logam Mn kolam percobaan A dan B masing-masing dari 2,18 mg/l menjadi 0,75 mg/l dan 1,07 mg/l dengan persentase sebesar 65,59% dan 50,91%.

City Park is a public space which should be utilized optimally by the community. One of the city parks intersecting with the center of facilities and infrastructure of Banda Aceh city is Taman Sari. The condition of the urban park in Banda Aceh city is not comfortable enough. Therefore, people tend not to use public space optimally, in this case, as a place for interacting and holding the certain events. This research was intended to conduct a systematic observation on the utilization of Taman Sari (the city park) to maximize its function as public area and manage the efforts for the improvement of the area related to transformation of recreational area as the local playground into more meaningful, purposeful and useful site in term of social, economic, and environment sectors. The data obtained through field surveys, interviews and the study of literature as well as providing documentation about the activities of the community by analyzing the qualitative descriptive methods. The result showed that the city park which was also as the representative public open area in Banda Aceh did not provide public facilities sufficiently. Therefore, the existence of the city park would not only act as a playground but it could be more functional and beneficial in accordance with social and recreational activities, community creative art and entertainment, entrepreneurial activities as well as environmental conservation. The Availability of public facilities would provide more attracting values to invite public to utilize the area as the center for many activities.