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墨書 Inktalez
Inside the bag were several pieces of honeycomb-like black stones. Lin Dahe paused for a moment before realizing they were burnt beast bones! The system excitedly marked it as: [High-Quality Activated Carbon Material]!
The one-armed veteran tapped the newly dug reservoir with the handle of his knife, "What do we do now?"
"Let's split up," Lin Dahe assigned tasks. "Uncle Li, take some people to dig the sedimentation tank. Brother Zhao, go collect ash from the plants. Xiaoman..."
He glanced at the injury on the girl's face and suddenly fell silent. Cui Xiaoman had already picked up a shovel, "I'll keep an eye on the Zhou family to prevent them from pulling any dirty tricks."
The system's countdown flickered in the dawn light: [58:22:17]. Lin Dahe looked at the lightening horizon and for the first time felt that the red numbers weren't so glaring.
Moonlight filtered through the window, casting mottled shadows on the muddy ground. Lin Dahe ground the last piece of burnt beast bone into fine powder, the sound of stone mortar and pestle clashing resonating clearly in the quiet night. Cui Xiaoman squatted by the stove, using a needle to drill a third row of tiny holes in a bamboo tube, glancing up at Lin Dahe's direction with each hole she made.
"Make them closer together," Lin Dahe said without looking up, his fingers pinching the bone powder to check its fineness. "The smaller the holes, the better the filtration."
Cui Xiaoman pouted, brushing her hair with the needle tip, "Do you think I'm some skilled artisan from an embroidery workshop?" Despite her words, she leaned closer to the oil lamp and reduced the spacing between holes by half.
Various materials were scattered on the ground: coarse burlap, fine river sand, dried calamus roots, and alum borrowed from Seventh Uncle's house. Lin Dahe layered the bone powder and fine sand into the bamboo tube according to the ratio provided by the system. His movements were slow; each layer had to be gently compacted with a wooden stick to ensure there were no gaps.
"Can this thing really be drunk?" Cui Xiaoman poked at the bamboo tube filled with black powder with her chopsticks. "It looks dirtier than Aunt Ma's foot bath water."
Lin Dahe didn’t respond; instead, he scooped up a spoonful of sewage taken from downstream of the Zhou family. The surface was covered in strange bubbles and emitted a foul odor of decaying grease. As he slowly poured the sewage into the bamboo tube, both of their breaths involuntarily held.
When the first drop of water seeped out from the bottom of the tube, Cui Xiaoman's eyes widened in surprise, "Clear... clear?!"
The droplets fell continuously, gathering into a transparent liquid in a ceramic bowl. Lin Dahe carefully shook the bowl; small ripples danced across its surface, reflecting the light of the oil lamp, pure like spring water from a mountain stream.
"Try it," he handed the bowl to Cui Xiaoman.
The girl hesitated for a moment before taking a small sip; her eyes instantly lit up, "It's sweet! And there's a bit... of medicinal fragrance?"
The system interface flickered: [Simple Filter Completed, Purification Efficiency 68%]. Lin Dahe let out a long breath and then realized that his back was already soaked with sweat.
"To supply the entire village, we need at least twenty of these filters." He counted through their dwindling materials and frowned again, "We don't have enough bone charcoal..."
Just as Cui Xiaoman was about to speak, the wooden door was suddenly pushed open. The one-armed veteran stepped in carrying a sack that was still dusted with kiln ash. "This is from Dumb," he said.
As he opened the bag, half a basket of leftover charcoal from burning wood spilled out, mixed with unburnt willow twigs.
"He said..." The veteran made a stirring gesture with his hands, "If we refine it again, its effectiveness will rival that of bone charcoal."
Lin Dahe picked up a piece of charcoal residue for closer inspection; its cross-section displayed an even honeycomb structure. The system immediately popped up a prompt: [Willow Charcoal Porosity Meets Standards, Can Replace Bone Charcoal].
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