Pembinaan Rancang Bangun Filter Air untuk Mengatasi Air Tanah Asindi Desa Tinumpuk Kecamatan Purwosari Kabupaten Bojonegoro

Abstract

The problem of saline and cloudy groundwater quality in Tinumpuk Village, Purwosari District, Bojonegoro Regency, has rendered the government-built clean water distribution system unusable for the community. This community service program aims to provide an appropriate technological solution in the form of training and assistance in the construction of a two-stage groundwater filtration device. The first filter consists of a 550-liter tank filled with natural materials such as palm fiber, activated carbon, silica sand, and zeolite sand. The second filter, a Fiberglass Reinforced Plastic (FRP) tube containing similar filtration media, functions to re-filter the water before distribution. The program involved village officials, youth organizations, and the general public through focus group discussions (FGDs), technical training, and live demonstrations. The results demonstrated increased community knowledge, skills, and awareness of the importance of sustainable groundwater management and water conservation. Testing of the filtration device demonstrated significant improvements in water quality, both visually and organoleptically. This program has had a positive impact on increasing access to clean water, strengthening community participation, and marking the first step toward community-based clean water independence.Permasalahan kualitas air tanah yang asin dan keruh di Desa Tinumpuk, Kecamatan Purwosari, Kabupaten Bojonegoro menyebabkan sistem distribusi air bersih yang telah dibangun pemerintah tidak dapat dimanfaatkan masyarakat. Kegiatan pengabdian ini bertujuan untuk memberikan solusi teknologi tepat guna berupa pelatihan dan pendampingan pembuatan alat filtrasi air tanah dua tahap. Filter pertama berupa tangki 550 liter berisi bahan alami seperti ijuk, karbon aktif, pasir silika, dan pasir zeolit. Filter kedua berupa tabung FRP (Fiberglass Reinforced Plastic) berisi media filtrasi serupa, yang berfungsi menyaring kembali air sebelum didistribusikan. Kegiatan melibatkan perangkat desa, karang taruna, dan masyarakat umum melalui FGD, pelatihan teknis, serta demonstrasi langsung. Hasil kegiatan menunjukkan peningkatan pengetahuan, keterampilan, dan kesadaran masyarakat terhadap pentingnya pengelolaan air tanah dan konservasi air secara berkelanjutan. Uji coba alat filtrasi membuktikan adanya peningkatan kualitas air yang signifikan, baik secara visual maupun organoleptik. Program ini berdampak positif dalam meningkatkan akses air bersih, memperkuat partisipasi masyarakat, serta menjadi langkah awal menuju kemandirian air bersih berbasis komunitas.